xin hui k, chun wie c, abdul malik talha, koshy philip, cindy shuan ju teh, adib mat isa, ms wong, deborah chia hsin chew, z. wong, ns jusoh, nm mohamed maksum, norfilza m mokhtar, h abdul majid, raja affendi raja ali, yeong yeh lee, sanjiv mahadeva.  (2023).  the impact of diet and ethnicity on gut microbiota variation in irritable bowel syndrome: a multi-center study.  - journal of gastroenterology and hepatology.  1259-1268. 

hooi leng ser, siu jung au yong, mohamad nasir shafiee, norfilza mohd mokhtar, raja affendi raja ali.  (2023).  current updates on the role of microbiome in endometriosis: a narrative review.  - microorganisms.  1-28. 

nurul nadirah razali, raja affendi raja ali, khairul najmi muhammad nawawi, azyani yahaya, norshafila diana mohd rathi, norfilza mohd mokhtar.  (2023).  roles of phosphatidylinositol-3-kinases signaling pathway in inflammation-related cancer: impact of rs10889677 variant and buparlisib in colitis-associated cancer.  - world journal of gastroenterology.  5543-5556. 

nur izreena ismail, khairul najmi muhammad nawawi, deborah chew chia hsin, kok wei hao, nik ritza kosai nik mahmood, gary lee chong chearn, zhiqin wong, azmi mohd tamil, hazel joseph, raja affendi raja ali.  (2023).  probiotic containing lactobacillus reuteri dsm 17648 as an adjunct treatment for helicobacter pylori infection: a randomized, double- blind, placebo- controlled trial.  - helicobacter.  1-11. 

kuan yee lim, raja affendi raja ali, zhiqin wong, faizah mohd zaki, juliana fairuz maktar, khairul najmi muhammad nawawi.  (2023).  evaluation of intestinal ultrasound for disease activity assessment in patients with inflammatory bowel disease: a cross-sectional study at a tertiary centre in malaysia.  - saudi journal of gastroenterology.  300-309. 

wan rohaslizan wan daud, rafiz abdul rani, wong zhiqin, shamsul azhar shah, hazlina mahadzir, raja affendi raja ali.  (2022).  endoscopic findings among geriatric patients with anaemia and chronic kidney disease at a tertiary teaching hospital in malaysia.  - medical journal of malaysia.  284-290. 

razinah sharif, yau jia xin, nor hidayah abdul hamid, nur mahirah amani mohammad, suzana shahar & raja affendi raja ali.  (2022).  dietary risk factors and odds of colorectal adenoma in malaysia: a case-control study.  - nutrition and cancer.  2757-2768. 

tee meng kang, khairul najmi muhammad nawawi, ngiu chai soon, deborah chew chia hsin, raja affendi raja ali, wong zhiqin.  (2022).  high dose oestrogen in life threatening obscure gastrointestinal bleeding.  - acta medica indonesiana.  456-458. 

sheng zhang lim, raja affendi raja adli, suzana makpol & eng wee chua.  (2022).  therapeutic monitoring of thiopurine metabolites: validation of an hplc method and preliminary findings from a small cohort of malaysian patients with inflammatory bowel disease.  - sains malaysiana.  1847-1859. 

nurul nadirah razali, raja affendi raja ali, khairul najmi muhammad nawawi, azyani yahaya and norfilza m. mokhtar.  (2022).  targeted sequencing of cytokine-induced pi3k-related genes in ulcerative colitis, colorectal cancer and colitis-associated cancer.  - international journal of molecular sciences.  1-16. 

asif sukri, alfizah hanafiah, hamidah yusoff, nur atiqah shamsul nizam, zarith nameyrra, zhiqin wong and raja affendi raja ali.  (2022).  multidrug-resistant helicobacter pylori strains: a five-year surveillance study and its genome characteristics.  - antibiotics.  1-12. 

lydiatul shima ashari, ainaa almardhiyah abd rashid, mohd razif shahril, yeong yeh lee, yee cheng kueh, bibi nabihah abdul hakim, nor hamizah shafiee, raja affendi raja ali & hamid jan jan mohamed.  (2022).  exploring the norms of eating-out practice among adults in malaysia.  - malaysian journal of nutrition.  31-41. 

zubaidah hasain, raja affendi raja ali, hajar fauzan ahmad, ummul fahri abdul rauf, seok fang oon and norfilza mohd mokhtar.  (2022).  the roles of probiotics in the gut microbiota composition and metabolic outcomes in asymptomatic post-gestational diabetes women: a randomized controlled trial.  - nutrients.  1-25. 

nik ritza kosai, raja affendi raja ali.  (2022).  global multi-stakeholder endorsement of the mafld definition.  - the lancet gastroenterology and hepatology.  388-390. 

wah-kheong chan, soek-siam tan, siew-pheng chan, yeong-yeh lee, hoi-poh tee, sanjiv m., khean-lee goh, anis safura ramli, feisul m., nik ritza k. dan raja affendi ra.  (2022).  malaysian society of gastroenterology and hepatology consensus statement on metabolic dysfunction-associated fatty liver disease.  - gastroenterology and hepatology.  795-811. 

nur izreena ismail, raja affendi raja ali, zhiqin wong, khairul najmi muhammad nawawi, wei hao kok, nik ritza kosai nik mahmood, chia hsin chew, chong chearn lee, azmi mohd tamil, hazel joseph.  (2022).  the effect of lactobacillus reuteri probiotic as an adjunct treatment for helicobacter pylori infection in adults.  - gut.  1. 

khairul najmi muhammad nawawi, zhiqin wong, norfilza mohd mokhtar, raja affendi raja ali.  (2022).  palm tocotrienol-rich fraction significantly improve transaminase levels, hepatic steatosis and inflammation scores in patients with metabolic dysfunction-associated fatty liver disease: an observational real-world study.  - gut.  1. 

nor hamizah shafiee, nurul huda razalli, khairul najmi muhammad nawawi, norfilza mohd mokhtar, raja affendi raja ali.  (2022).  racial disparities, nutritional intake, and colorectal cancer risk: findings from a hospital-based study in malaysia.  - gut.  1. 

hana hadi, wan muhammad azfar wan shuaib, raja affendi raja ali, hanita othman.  (2022).  utility of pivka-ii and afp in differentiating hepatocellular carcinoma from non-malignant high-risk patients.  - medicina-lithuania.  1-12. 

nor h shafiee, nurul h razalli, khairul n muhammad nawawi, norfilza mohd mokhtar, raja affendi raja ali.  (2022).  implication of food insecurity on the gut microbiota and its potential relevance to a multi-ethnic population in malaysia.  - jgh open.  112-119. 

raja affendi raja ali, jamiyah hassan, laurence j. egan.  (2022).  review of recent evidence on the management of heartburn in pregnant and breastfeeding women.  - bmc gastroenterology.  1-10. 

mohd ridzuan mohd said, zhiqin wong,rafiz abdul rani, chai soon ngiu, raja affendi raja ali, yeong yeh lee.  (2021).  the effects of diferent postures and provocative swallow materials on the normative chicago 3.0 metrics in a healthy asian population.  - journal gastroenterology and hepatology.  1244-1252. 

ramizi mohamed, zulkifli mohd nopiah, raja affendi raja ali.  (2021).  s-e-i-r model solution for malaysia covid-19 pandemic projection.  - turkish journal of physiotherapy and rehabilitation.  2844-2854. 

ramizi mohamed, zulkifli mohd nopiah and raja affendi raja ali.  (2021).  closed monitoring of malaysia covid-19 using seir compartmental model for first wave trajectory.  - international journal of advanced technology and engineering exploration.  135-148. 

zetti zainol rashid, saarah wan rosli, wong kon ken, raja affendi raja ali, umi ali.  (2021).  hepatitis b genotyping in chronic hepatitis b patients who are on treatment and the laboratory and clinical parameters.  - international journal of infectious diseases.  520. 

muhammad-afiq osman, hui-min neoh, nurul-syakima ab mutalib, siok-fong chin, luqman mazlan, raja affendi raja ali, andee dzulkarnaen zakaria, chai soon ngiu, mia yang ang, and rahman jamal.  (2021).  parvimonas micra, peptostreptococcus stomatis, fusobacterium nucleatum and akkermansia muciniphila as a four-bacteria biomarker panel of colorectal cancer.  - scientific reports.  1-12. 

siti maryam ahmad kendong, raja affendi raja ali, khairul najmi muhammad nawawi, hajar fauzan ahmad and norfilza mohd mokhtar.  (2021).  gut dysbiosis and intestinal barrier dysfunction: potential explanation for early-onset colorectal cancer.  - frontiers in cellular and infection microbiology.  1-18. 

emilina pt tan, teh rohaila jamil, raja affendi raja ali.  (2021).  perceived barrier towards hepatitis c management among primary care doctors in sabah.  - malaysian family physician.  35-36. 

norfilza m. mokhtar, norhayati md. jaafar, ereena alfian, norshafila diana mohd rathi, r. abdul rani, raja affendi raja ali.  (2021).  clinical assessment and cytokines level in constipation-predominant irritable bowel syndrome participants treated with lactobacillus-containing cultured milk drink.  - acta gastro-enterologica belgica.  585-591. 

khairul najmi muhammad nawawi, norfilza m. mokhtar, zhiqin wong, zairul azwan mohd azman, deborah chia hsin chew, rasyidah rehir, leong gee huey, fuad ismail, isa mohamed rose, yazmin yaacob, hamzaini abdul hamid, ismail sagap, raja affendi raja ali.  (2021).  incidence and clinicopathological features of colorectal cancer among multi-ethnic patients in kuala lumpur, malaysia: a hospital-based retrospective analysis over two decades.  - peerj.  1-17. 

hasyanee binmaeil, alfizah hanafiah, isa mohamed rose, raja affendi raja ali.  (2021).  development and validation of multiplex quantitative pcr assay for detection of helicobacter pylori and mutations conferring resistance to clarithromycin and levofloxacin in gastric biopsy.  - infection and drug resistance.  4129-4145. 

mohamad hizami mohamad nor, nurainina ayob, norfilza m. mokhtar, raja affendi raja ali, geok chin tan, zhiqin wong, nor hamizah shafiee, yin ping wong, muaatamarulain mustangin and khairul najmi muhammad nawawi.  (2021).  the effect of probiotics (mcp® bcmc® strains) on hepatic steatosis, small intestinal mucosal immune function, and intestinal barrier in patients with non-alcoholic fatty liver disease.  - nutrients.  1-16. 

nurainina ayob, khairul najmi muhammad nawawi, raja affendi raja ali, mohamad hizami mohamad nor, hajar fauzan ahmad, norfilza mohd mokhtar..  (2021).  exploring gut microbiota composition regulated by probiotics as a potential therapeutic target in non-alcoholic fatty liver disease patients.  - gut.  A55-A56. 

zubaidah hasain, nur aishah che roos, frhana rahmat, marami mustapa, raja affendi raja ali and norfilza mohd mokhtar.  (2021).  diet and pre-intervention washout modifies the effects of probiotics on gestational diabetes mellitus: a comprehensive systematic review and meta-analysis of randomized controlled trials.  - nutrients.  1-25. 

muhammad nazirul mubin aziz, jaya kumar, khairul najmi muhammad nawawi, raja affendi raja ali and norfilza m. mokhtar.  (2021).  irritable bowel syndrome, depression, and neurodegeneration: a bidirectional communication from gut to brain.  - nutrients.  1-16. 

muaz moosa, juliana fairuz maktar, hamzaini abdul hamid, khairul najmi muhammad nawawi, wong zhiqin, raja affendi raja ali.  (2021).  an evaluation of double-balloon enteroscopy in small bowel diseases: seven years of single-center experience in malaysia.  - journal of gastroenterology and hepatology.  239-240. 

nurainina ayob, khairul najmi muhammad nawawi, raja affendi raja ali, mohamad hizami mohamad nor, hajar fauzan ahmad, norfilza mohd mokhtar.  (2021).  effects of probiotics on gut microbiome diversity in non-alcoholic fatty liver disease patients - a preliminary results.  - journal of gastroenterology and hepatology.  254. 

mn. mohamad hizami, a. nurainina, s. nor hamizah, mm. norfilza, w. zhiqin, ra. raja affendi and mn. khairul najmi.  (2021).  the effect of probiotics on the hepatic steatosis, fibrosis and serum biochemistry of patients with non-alcoholic fatty liver disease: a randomized, double-blind, placebo-controlled pilot study.  - journal of gastroenterology and hepatology.  56. 

khairul najmi muhammad nawawi, nurainina ayob, raja affendi raja ali, mohamad hizami mohamad nor, tan geok chin, zhiqin wong, yin ping wong, muaatamarulain mustangin, norfilza mohd mokhtar.  (2021).  effect of probiotics on mucosal immune function and intestinal permeability in non-alcoholic fatty liver disease patients.  - journal of gastroenterology and hepatology.  70. 

khairul najmi muhammad nawawi, kuan yee lim1, faizah mohd zaki, juliana fairuz maktar, zhiqin wong and raja affendi raja ali.  (2021).  performance of intestinal ultrasound in comparison with ileocolonoscopy for the disease activity in patients with inflammatory bowel disease.  - journal of gastroenterology and hepatology.  33. 

nor hamizah shafiee, zahara abdul manaf, norfilza m. mokhtar, raja affendi raja ali.  (2021).  anti-inflammatory diet and inflammatory bowel disease: what clinicians and patients should know?.  - intestinal research.  171-185. 

farah d.r. al-baiaty, aziana ismail, zarina abdul latiff, khairul najmi muhammad nawawi, raja affendi raja ali and norfilza mohd mokhtar.  (2021).  possible hepatoprotective effect of tocotrienol-rich fraction vitamin e in non-alcoholic fatty liver disease in obese children and adolescents.  - frontiers in pediatrics.  1-12. 

zubaidah hasain, raja affendi raja ali, shairah abdul razak, kamalrul azlan azizan, emad el-omar, nurul huda razalli, norfilza mohd mokhtar.  (2021).  gut microbiota signature among asian post-gestational diabetes women linked with macronutrient intakes and metabolic phenotypes.  - frontiers in microbiology.  1559-1574. 

yeong yeh lee, alex h-r leow, pei fan chai, raja affendi raja ali, way seah lee, khean lee goh.  (2021).  use of probiotics in clinical practice with special reference to diarrheal diseases: a position statement of the malaysian society of gastroenterology and hepatology.  - jgh open.  11-19. 

mohd ridzuan mohd said, zhiqin wong, rafiz abdul rani, ngiu chai soon, raja affendi raja ali, yeong yeh lee.  (2021).  the effects of different postures and provocative swallow materials on the normative chicago 3.0 metrics in a healthy asian population.  - journal of gastroenterology and hepatology.  1244-1252. 

sheril june ankasha, mohamad nasir shafiee, norhazlina abdul wahab, raja affendi raja ali and norfilza mohd mokhtar.  (2021).  oncogenic role of mir-200c-3p in high-grade serous ovarian cancer progression via targeting the 3'-untranslated region of dlc1.  - international journal of environmental research and public health.  1-14. 

mohd fyzal bahrudin, rafiz abdul rani, azmi mohd tamil, norfilza mohd mokhtar, raja affendi raja ali.  (2020).  effectiveness of sterilized symbiotic drink containing lactobacillus helveticus comparable to probiotic alone in patients with constipation predominant irritable bowel syndrome.  - digestive diseases and sciences.  541-549. 

desmond leddin, david armstrong, raja a. raja ali, amna s. butt, ye chen, harshit s. khara, yeong yeh lee, wai keung leung, finlay macrae, govind makharia, reza malekzadeh, elias makhoul, anahita sadeghi, jean-christophe saurin, mark topazian,.  (2020).  personal protective equipment for endoscopy in low-resource settings during the covid-19 pandemic. guidance from the world gastroenterology organisation.  - journal of clinical gastroenterology.  833-840. 

rupa banerjee, raja affendi raja ali, shu chen wei, shashi adsul.  (2020).  biologics for the management of inflammatory bowel disease: a review in tuberculosis-endemic countries.  - gut and liver.  685-698. 

zubaidah hasain, norfilza mohd mokhtar, nor azmi kamaruddin, nor azlin mohamed ismail, nurul huda razalli, justin vijay gnanou, raja affendi raja ali.  (2020).  gut microbiota and gestational diabetes mellitus: a review of host-gut microbiota interactions and their therapeutic potential.  - frontiers in cellular & infection microbiology.  1-19. 

muhammad ateeq bin md jalil, zhiqin wong, raja affendi raja ali, yeong yeh lee.  (2020).  management of refractory heartburn: are we convinced that surgery is better than medical treatment?.  - journal of the royal college of physicians of edinburgh.  51-53. 

allia najmie muhammad yusuf, raja affendi raja ali, khairul najmi muhammad nawawi, norfilza mohd mokhtar.  (2020).  potential biomarkers in nash-induced liver cirrhosis with hepatocellular carcinoma: a preliminary work on roles of exosomal mir-182, mir-301a, and mir-373.  - malaysian journal of pathology.  377-384. 

nor hamizah shafiee, zahara abdul manaf, norfilza m. mokhtar, raja affendi raja ali.  (2020).  an assessment of dietary intake, food avoidance and food beliefs in patients with ulcerative colitis of different disease status.  - intestinal research.  447-458. 

norhazlina abdul wahab, zahreena othman, noor wahidah mohd nasri, mohd helmy mokhtar, siti fatimah ibrahim, adila a. hamid, raja affendi raja ali and norfilza mohd mokhtar.  (2020).  inhibition of mir-141 and mir-200a increase dlc-1 and zeb2 expression, enhance migration and invasion in metastatic serous ovarian cancer.  - international journal of environmental research and public health.  1-14. 

u.k. ali , k.c. fong, s.a. salleh , z. zainol rashid, k.k. wong, r.a. raja ali.  (2020).  hepatitis b genotyping in chronic hepatitis b patients not on treatment in a tertiary medical centre in kuala lumpur malaysia.  - international journal of infectious diseases.  516. 

azliza ibrahim ,raja affendi raja ali, mohd rizal abdul manaf, norfazilah ahmad, farah waheeda tajurruddin, wong zhi qin, siti hajar md desa, norlinah mohamed ibrahim.  (2020).  multi-strain probiotics (hexbio) containing mcp bcmc strains improved constipation and gut motility in parkinsons disease: a randomised controlled trial.  - plos one.  1-17. 

allia najmie muhammad yusuf, raja affendi raja ali, khairul najmi muhammad nawawi, norfilza mohd mokhtar.  (2020).  potential biomarkers in nash-induced liver cirrhosis with hepatocellular carcinoma: a preliminary work on roles of exosomal mir-182, mir-301a, and mir-373.  - malaysian journal of pathology.  377-384. 

norfilza mohd mokhtar, mohd fyzal bahrudin, nazierah abd ghani, rafiz abdul rani and raja affendi raja ali.  (2020).  prevalence of subthreshold depression among constipation-predominant irritable bowel syndrome patients.  - frontiers in psychology.  1-6. 

wong zhiqin, khairul najmi muhammad nawawi, raja affendi raja ali.  (2020).  application of an anti-aerosol box for esophagogastroduodenoscopy during the covid-19 pandemic: double up the protection.  - endoscopy.  704-705. 

khairul najmi muhammad nawawi, wong zhiqin, raja affendi raja ali.  (2019).  the practice of surveillance colonoscopy in patients with inflammatory bowel disease at the national university of malaysia medical centre: a real-world experience.  - journal of gastroenterology and hepatology.  245. 

intan melati abu bakar, sharifa ezat wan puteh, halim ismail, raja affendi raja ali & muhammad radzi abu hassan.  (2019).  quality of life among colorectal cancer screening patients in malaysia.  - sains malaysiana.  1959-1967. 

khairul najmi muhammad nawawi, zhiqin wong, chai soon ngiu, raja affendi raja ali.  (2019).  it's not just a heartburn and reflux disease: a case report of distal oesophageal spasm and review of literature.  - medical journal of malaysia.  333-335. 

sumitro kosasih, khairul najmi muhammad nawawi, zhiqin wong, deborah chew chia hsin, andrea yu-lin ban, raja affendi raja ali.  (2019).  upper gastrointestinal bleed due to duodenal metastases of lung adenocarcinoma: report of two cases and review of literature.  - case reports in medicine.  1-4. 

alfizah hanafiah, hasyanee binmaeil, raja affendi raja ali, isa mohamed rose, bruno s. lopes.  (2019).  molecular characterization and prevalence of antibiotic resistance in helicobacter pylori isolates in kuala lumpur, malaysia..  - infection and drug resistance.  3051-3061. 

wan syahira wan ahmad kammal, isa mohd rose, reena rahayu md zin, raja affendi raja ali, noraidah masir.  (2019).  extranodal nk/t-cell lymphoma mimicking crohn's colitis.  - malaysian journal of pathology.  195-199. 

eden ngah den low, norfilza mohd mokhtar, zhiqin wong, raja affendi raja ali.  (2019).  colonic mucosal transcriptomic changes in patients with long-duration ulcerative colitis revealed colitis-associated cancer pathways.  - journal of chron's and colitis.  755-763. 

khairul najmi muhammad nawawi, wong zhiqin, raja affendi raja ali.  (2019).  endoscopy as part of initial work-up for isolated unintentional weight loss: oesophagogastroduodenoscopy but not colonoscopy should be considered.  - journal of gastroenterology and hepatology.  523. 

khairunisa ahmad affandi, nordashima abd shukor, isa mohamed rose, raja affendi raja ali, noraidah masir.  (2019).  diffuse large b-cell lymphoma of the small intestine in a patient with refractory coeliac disease.  - malaysian journal of pathology.  65-69. 

siok-fong chin, putri intan hafizah megat mohd azlan, luqman mazlan, hui-min neoh, raja affendi raja ali, rahman jamal.  (2019).  dysbiosis of gut fungal microbiota in colorectal cancer: an assessment from faecal microbiome secretome.  - gut.  A1-A2. 

liyana zaharuddin, norfilza mohd mokhtar, khairul najmi muhammad nawawi, raja affendi raja ali.  (2019).  a randomized double-blind placebo-controlled trial of probiotics in post-surgical colorectal cancer.  - bmc gastroenterology.  1-8. 

zubaidah hasain, nor azmi kamaruddin, nor azlin mohamed ismail, tong seng fah, nurul huda razalli, norfilza mohd mokhtar, raja affendi raja ali..  (2019).  gut microbiota shift and low fibre intake in post gestational diabetes women.  - gut.  A96. 

deborah chia hsin chew, jeevinesh naidu, agni nhirmal kumar sugurmar, khairul najmi muhammad nawawi, raja affendi raja ali.  (2019).  brunners gland hyperplasia manifesting as a bleeding duodenal polyp.  - journal of gastroenterology and hepatology.  385. 

norfilza mohd mokhtar,khairul najmi muhammad nawawi,jaarvis verasingam,wong zhiqin,ismail sagap,zairul azwan mohd azman,luqman mazlan, hamzaini abdul hamid,nur yazmin yaacob,isa mohamed rose,eden low ngah den,mah suit wan and raja affendi raja ali.  (2019).  a four-decade analysis of the incidence trends, sociodemographic and clinical characteristics of inflammatory bowel disease patients at single tertiary centre, kuala lumpur, malaysia.  - bmc public health.  1-10. 

allia najmie muhammad yusuf, raja affendi raja ali, khairul najmi muhammad nawawi, norfilza mohd mokhtar.  (2019).  identification of cancer-related exosomal mirnas in nash-induced liver cirrhosis with hepatocellular carcinoma.  - gut.  A141. 

siok-fong chin, putri intan hafizah megat mohd azlan, luqman mazlan, hui-min neoh, raja affendi raja ali, rahman jamal.  (2019).  gut microbiome secretome revealed possible microbial communication network failure in colorectal cancer.  - bmc proceedings.  6. 

siok-fong chin, putri intan hafizah megat mohd azlan, luqman mazlan, hui-min neoh, raja affendi raja ali, rahman jamal.  (2019).  mapping of gut microbiome secretome in colorectal cancer: a malaysian data.  - gut.  A35. 

mohd khairul mohd kamil, ngiu chai soon, nurismah md isa, yazmin yaacob, deborah chew chia hsin, wong zhiqin, raja affendi raja ali.  (2018).  unexplained ascites, a sign for neuroendocrine carcinoma.  - medical journal of malaysia.  60-62. 

norhazlina abdul wahab, marjanu hikmah elias. raja affendi raja ali, norfilza mohd mokhtar.  (2018).  chronic consumption of fructose dysregulates genes related to glucose and lipid metabolism in prostate tissue.  - sains malaysiana.  . 

deborah chew, wong zhiqin, norhayati ibrahim,raja affendi raja ali.  (2018).  optimizing the multidimensional aspects of the patient-physician relationship in the management of inflammatory bowel disease.  - intestinal research.  509-521. 

sumitro kosasih, wong zhi qin, rafiz abdul rani, nazefah abd hamid, ngiu chai soon, shamsul azhar shah, yazmin yaakob, raja affendi raja ali.  (2018).  relationship between serum cytokeratin-18, control attenuation parameter, nafld fibrosis score, and liver steatosis in nonalcoholic fatty liver disease.  - international journal of hepatology.  1-2. 

gwee ka, lee wwr,ling kl,choon jin ooi, seng hock quak, dan yy, siah kt, james guoxian huang, andrew seng boon chua, hilmi in,raja affendi raja ali,ong c, simadibrata m, abdullah m, sollano jd, leelakusolvong s, gonlachanvit s,.  (2018).  consensus and contentious statements on the use of probiotics in clinical practice: a south east asian gastro-neuro motility association working team report.  - journal of gastroenterology & hepatology.  1707-1716. 

raja affendi raja ali, liyana zaharuddin, zhiqin wong, chai soon ngiu, seow-neng chan, norfilza mohd mokhtar.  (2018).  the clinical and circulating inflammatory cytokines effects of probiotic containing lactobacillus and bifidobacterium strains in patients with colorectal cancer: a randomized double blind controlled t.  - gastroenterology.  . 

alyaa hassan ali, shawal mohamed faizal, khairul najmi muhammad nawawi, wong zhiqin, ngiu chai soon, nur yazmin yaacob, shamsul azhar shah, hamad hamdi che hassan, oteh maskon, raja affendi raja ali.  (2018).  assessment of correlation between non-alcoholic fatty liver disease and severity of coronary artery disease in young acute coronary syndrome patients..  - gut.  . 

raja affendi raja ali, eden ngah den low, zhiqin wong, chai soon ngiu, seow-neng chan, norfilza mohd mokhtar.  (2018).  colonic mucosal transcriptomic changes in patients with long duration ulcerative colitis revealed colitis-associated cancer pathways.  - gastroenterology.  1023. 

ashwin n. ananthakrishnan, charles n. bernstein, dimitrios iliopoulos, andrew macpherson, markus f. neurath, raja a. raja ali, stephan r. vavricka and claudio fiocchi.  (2018).  environmental triggers in ibd: a review of progress and evidence.  - nature reviews gatroenterology and heaptology.  39-49. 

dian farhan muhamad sarkan, deborah chia hsin chew, zhiqin wong, chai soon ngiu, azniza ismail, yeong yeh lee, raja affendi raja ali.  (2018).  the impact and effectiveness of ibs clinical pathway in outpatient management of irritable bowel syndrome in a tertiary centre.  - gut.  . 

muhammad afiq osman, huimin neoh, nurul syakima ab mutalib, siok fong chin, luqman mazlan, andee dzulkarnaen zakaria, raja affendi raja ali, chai soon ngiu, mia yang ang, rahman jamal.  (2018).  aberrant gut mucosal microbiome signatures of malaysian colorectal cancer patients.  - gut.  A11. 

tan wei jian, norfilza mohd mokhtar, raja affendi raja ali, wong kon ken.  (2018).  manipulation of gut microbiota in in vitro model of colorectal cancer: positive effects of lactobacillus rhamnosus against fusobacterium nucleatum.  - gut.  a60. 

alyaa hassan ali, shawal mohamed faizal, khairul najmi muhammad nawawi, wong zhiqin, ngiu chai soon, nur yazmin yaacob, shamsul azhar shah, hamad hamdi che hassan, oteh maskon, raja affendi raja ali.  (2018).  assessment of correlation between non alcoholic fatty liver disease and severity of coronary artery disease in young acute coronary syndrome patients.  - gut.  A111-A112. 

zhiqin wong, zairul azwan mohd azman, luqman mazlan, rasyidah rehir, chai soon ngiu, jeevinesh naidu, fuad ismail, nik muhd aslan abdullah, gee huey leong, isa rose, azyani yahaya, nur yazmin yaacob, syazarina sharis osman, ismail sagap, raja affendi raj.  (2018).  an analysis of trend, clinicopathological features and treatment received by multi-ethnic patients with colorectal cancer at a single tertiary care centre in malaysia: a review of 2 decades.  - gut.  . 

ramesh rao, jeevinesh naidu, khairul najmi muhammad nawawi, zhiqin wong, chai soon ngiu, fazarina mohammed, raja affendi raja ali, nur yazmin yaacob.  (2018).  diffuse hepatic haemangiomatosis: a case report and review of literature.  - medical journal of malaysia.  . 

sheril june ankasha, mohamad nasir shafiee, norhazlina abdul wahab, raja affendi raja ali, norfilza mohd mokhtar.  (2018).  post-transcriptional regulation of micrornas in cancer: from prediction to validation.  - oncology reviews.  . 

seow-neng chan, eden ngah den low, raja affendi raja ali, norfilza mohd mokhtar.  (2018).  delineating inflammatory bowel disease through transcriptomic studies: current review of progress and evidence.  - intestinal research.  374-383. 

yeong yeh lee , siti asma hassan, intan hakimah ismail, sze yee chong, raja affendi raja ali, syafinaz amin nordin, way seah lee and noorizan abdul majid.  (2017).  gut microbiota in early life and its influence on health and disease: a position paper by the malaysian working group on gastrointestinal health.  - journal of paediatrics & child health.  1152-1158. 

e.n.d. low; z. wong; c.s. ngiu; a.h. nazefah; a.r. rafiz; n. mokhtar; r.a. raja ali.  (2017).  identification of alternative splicing in transcript isoforms in patients with ulcerative colitis: effects of disease duration.  - journal crohns colitis.  94-95. 

mohd ridzuan mohd said, rafiz abdul rani, raja affendi raja ali, ngiu chai soon.  (2017).  abdominal wall necrotising fasciitis: a rare but devastating complication of the percutaneous endoscopic gastrostomy procedure.  - malaysia journal of malaysia.  77-79. 

jeevinesh naidu, zhiqin wong, shanthi palaniappan, chai soon ngiu, nur yazmin yaacob, hamzaini abdul hamid, marjanu hikmah elias, norfilza mohamad mokhtar, raja affendi raja ali.  (2017).  radiation exposure in patients with inflammatory bowel disease: a fourteen-year review at a tertiary care centre in malaysia.  - asian pacific journal of cancer prevention.  933-939. 

cs ng,m luqman,zq wong,cs ngiu,ra raja affendi.  (2017).  gastrointestinal: solitary fibrous tumor from lesser omentum: an elderly from malaysia with an unusual huge painful intra-abdominal mass.  - journal of gastroenterology and hepatology.  1664. 

khairunisa ahmad affandi, nordashima abd shukor, isa mohamed rose, raja affendi raja ali, and noraidah masir.  (2016).  diffuse large b-cell lymphoma of the small intestine in a refractory coeliac disease.  - malaysian journal of pathology.  340. 

wan syahira ellani wan ahmad kammal, isa mohd rose, reena rahayu md zin, raja affendi raja ali , and noraidah masir.  (2016).  a rare presentation of nk/t-cell lymphoma as multiple ulcerative colonic lesions.  - malaysian journal of pathology.  339. 

f abdul rahman, j naidu, cs ngiu, y yaakob, z mohamed, h othman, r jarmin, mh elias, n abdul hamid, n mohd mokhtar, ra raja ali.  (2016).  conventional versus doxorubicin-eluting beads transarterial chemoembolization for unresectable hepatocellular carcinoma a tertiary medical centre experience in malaysia.  - asian pacific journal of cancer prevention.  4037-4041. 

rafiz abdul rani, raja affendi raja ali, yeong yeh lee.  (2016).  irritable bowel syndrome and inflammatory bowel disease overlapped syndrome- pieces of puzzle falling into place.  - intestinal research.  297-304. 

r abdul rani, mf limun, j naidu, cs ngiu, ra raja ali.  (2016).  amoebic colitis mimicking a colonic carcinoma.  - brunei international medical journal.  85-87. 

greuter,t,bertoldo, f, rechner,r., straumann,a, biedermann,l., zeitz,j, misselwitz,b., scharl,m., rogler,g., safroneeva,e., ali, r.a., braegger, c., heyland, k., mueller,p., nydegger,a.,petit,l.-m., schibli,s., furlano,r.i., spalinger,j., sc.  (2016).  extraintestinal manifestations of pediatric inflammatory bowel disease: prevalence, presentation and anti-tnf treatment.  - journal of pediatric gastroenterology and nutrition.  -. 

rafiz abdul rani, fara rahidah hussin, hamzaini abdul hamid, isa mohd rose, raja affendi raja ali.  (2016).  polyps! polyps! and more polyps! - the first case of cronkhite-canada syndrome in malaysia.  - medical journal of malaysia.  37-38. 

ng c.s., isa h.m., periyasamy p., mohamad s., raja ali r.a..  (2015).  an ocular diploid fungus: a case of an overlook systemic mycosis.  - brunei international medical journal.  103-105. 

palaniappan s., wan zaidi w.a., tan g.c., yaacob y., raja ali r.a..  (2014).  splenic littoral cell angioma in a patient with myasthenia gravis.  - brunei international medical journal.  208 - 211. 

f abdul rahman, ra raja ali, h razlan, zq wong, j naidu, hl tan, r senian, y yaakob, z mohamed, h othman, r jarmin, s palaniappan.  (2014).  conventional versus doxorubicin-eluting bead transarterial chemoembolization for unrescetable hepatocellular carcinoma: a tertiary hospital experience in malaysia.  - hepatology international.  s286.