essam ali al-sanaani, aniza ismail, mohd rizal abdul manaf, leny suzana suddin, norlaila mustafa, norlela sukor alabed ali a. alabed, ahmed abdelmajed alkhodary, syed mohamed aljunid.  (2022).  health insurance status and its determinants among patients with type 2 diabetes mellitus in a tertiary teaching hospital in malaysia.  - plos one.  1-17. 

mohd helma rusyda, nor ba'yah abdul kadir, wan nur khairunnisa ismail, siti jamiaah abdul jalil, nurul-azza abdullah, arena che kasim, suzana mohd. hoesni, mohd rizal abdul manaf.  (2022).  identifying the psychometric properties of the malay version of the whoqol bref among employees with obesity problem.  - international journal of environmental research and public health.  1-14. 

nor ba`yah abdul kadir, rusyda helma mohamed, wan nur khairunnisa ismail, siti jamiaah abdul jalil, nurul-azza abdullah, arena che kasim, suzana mohd. hoesni, mohd rizal abdul manaf.  (2022).  sustaining the quality of life for university employees with obesity using mindfulness activities and work engagement: a quasi-experimental design.  - sustainability.  1-13. 

jamilah yusof, aniza ismail, mohd rizal abd manaf, fuad ismail, norlia abdullah, rohaizak muhammad, shahrun niza abdullah suhaimi and reena rahayu mat zin.  (2022).  quality of life of women with breast cancer in a tertiary referral university hospital.  - health and quality of life outcomes.  1-13. 

khadijah alavi, rosnah sutan, suzana shahar, mohd rizal abdul manaf, mohd hasni jaafar, khairul nizam abdul maulud, zaini embong, kamarul baraini keliwon, ruzian markom.  (2022).  connecting the dots between social care and healthcare for the sustainability development of older adult in asia: a scoping review.  - sustainability.  1-17. 

sharifah saffinas syed soffian, azmawati mohammed nawi, rozita hod, mohd rizal abdul manaf, huan-keat chan, muhammad radzi abu hassan.  (2022).  disparities in recommendations for colorectal cancer screening among average-risk individuals: an ecobiosocial approach.  - risk management and healthcare policy.  1025-1043. 

rozmi ismail, mohd rizal abdul manaf, mohd rohaizat hassan, azmawati mohammed nawi, norhayati ibrahim, novel lyndon, noh amit, ezarina zakaria, muhammad ajib abd razak, norshaffika izzaty zaiedy nor, md shafiin shukor, aimi fadzirul kamarubahrin..  (2022).  prevalence of drug and substance use among malaysian youth: a nationwide survey.  - international journal of environmental research and public health.  1-15. 

mazni baharom, norfazilah ahmad, rozita hod, mohd rizal abdul manaf.  (2022).  dengue early warning system as outbreak prediction tool: a systematic review.  - risk management and healthcare policy.  871-886. 

azmawati mohammed nawi, rozmi ismail, fauziah ibrahim, mohd rohaizat hassan, mohd rizal abdul manaf, noh amit, norhayati ibrahim and nurul shafini shafurdin.  (2021).  risk and protective factors of drug abuse among adolescents: a systematic review.  - bmc public health.  1-15. 

m rizal a manaf, md al-amin shaharuddin, azmawati md nawi, noorlaili m tauhid, hanita o, m rizam a rahman, hanizah m yusoff, nazarudin safian, pei y n, zahara a manaf, nor bayah a kadir, kevina y, s munirah a basir, sowmya r, m izhar ariff, kurubaran g..  (2021).  perceived symptoms of depression, anxiety and stress amongst staff in a malaysian public university: a workers survey.  - international journal of environmental research and public health.  1-13. 

md rizal a manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a rahman, hanizah md yusoff, nazarudin safian, pei yuen ng, zahara a manaf, nor bayah a kadir, kevina y, siti munirah a basir, sowmya r, md izhar ariff, kurubaran g.  (2021).  factors associated with health related quality of life amongst employees in a malaysian public university.  - international journal of environmental research and public health.  1-19. 

nor ba`yah abdul kadir , wan nur khairunnisa ismail, nurul-azza abdullah, rusyda helma, siti jamiaah abdul jalil, arena che kasim, suzana mohd.hoesni, mohd. rizal abdul manaf.  (2021).  criterion validity and psychometric properties of a malay version of the short multidimensional inventory lifestyle evaluation-confinement (smile-c) in a sample of university staff with weight problem.  - international journal of environmental research and public health.  1-9. 

abdul rahman ramdzan, mohd rizal abdul manaf, azimatun noor aizuddin, zarina a. latiff, keng wee teik, gaik-siew ch'ng, kurubaran ganasegeran, syed mohamed aljunid.  (2021).  cost-effectiveness of colorectal cancer genetic testing.  - international journal of environmental research and public health.  1-17. 

mohd rizal a. manaf, azmawati md nawi, noorlaili md tauhid, hanita othman, md rizam a. rahman, hanizah md yusoff, nazaruddin safian, pei yuen ng, zahara a. manaf, nor bayah abd kadir, kevina yanasegaran, siti munirah abd basir, sowmya r., kurubaran g..  (2021).  prevalence of metabolic syndrome and its associated risk factors among staffs in a malaysian public university.  - scientific reports.  1-11. 

kurubaran ganasegeran, chee peng hor, mohd fadzly amar jamil, purnima devi suppiah, juliana mohd noor, norshahida abdul hamid, deik roy chuan, mohd rizal abdul manaf, alan swee hock chng and irene looi.  (2021).  mapping the scientific landscape of diabetes research in malaysia (2000-2018): a systematic scientometrics study.  - international journal of environmental research and public health.  1-20. 

nur suhada ramli, mohd rizal abdul manaf, mohd rohaizat hassan , muhamad izwan ismail and azmawati mohammed nawi.  (2021).  effectiveness of colorectal cancer screening promotion using e-media decision aids: a systematic review and meta-analysis.  - international journal of environmental research and public health.  1-19. 

nur syakirah awai, kurubaran ganasegeran, mohd rizal abdul manaf.  (2021).  prevalence of workplace bullying and its associated factors among workers in a malaysian public university hospital: a cross-sectional study.  - risk management and healthcare policy.  75-85. 

ani amelia zainuddin, sonia regina grover, nur azurah abdul ghani, loo ling wu, rahmah rasat, mohd rizal abdul manaf, khadijah shamsuddin, zaleha abdullah mahdy.  (2020).  health-related quality of life of female patients with congenital adrenal hyperplasia in malaysia.  - health and quality of life outcomes.  258-266. 

ani amelia zainuddin, sonia regina grover, chong hong soon, nur azurah abdul ghani, zaleha abdullah mahdy, mohammad rizal abdul manaf, khadijah shamsuddin.  (2020).  a multicenter cross-sectional study of malaysian females with congenital adrenal hyperplasia: their body image and their perspectives on feminizing surgery.  - journal of pediatric and adolescent gynecology.  477-483. 

mohd fadhli mohd fauzi , hanizah mohd yusoff, nur adibah mat saruan, rosnawati muhamad robat, mohd rizal abdul manaf, maisarah ghazali.  (2020).  fatigue and recovery among malaysian doctors: the role of work-related activities during non-work time.  - bmj open.  1-10. 

kurubaran ganasegeran, chee peng hor, mohd fadzly amar jamil, hong chuan loh, juliana mohd noor, norshahida abdul hamid, purnima devi suppiah, mohd rizal abdul manaf, alan swee hock chng, irene looi.  (2020).  a systematic review of the economic burden of type 2 diabetes in malaysia.  - international journal of environmental research and public health.  1-23. 

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. 

naren kumar surendra, mohd rizal abdul manaf, lai seong hooi, sunita bavanandan, fariz safhan mohamad nor, shahnaz shah firdaus khan, ong loke meng, abdul halim abdul gafor.  (2019).  cost utility analysis of end stage renal disease treatment in ministry of health dialysis centres, malaysia: hemodialysis versus continuous ambulatory peritoneal dialysis.  - plos one.  1-16. 

chin yi chan, shaanthana subramaniam, kok-yong chin, soelaiman ima-nirwana, norliza muhammad, ahmad fairus, abdul manaf mohd rizal, pei yuen ng, jamil nor aini, noorazah abd aziz and norazlina mohamed.  (2019).  knowledge, beliefs, dietary, and lifestyle practices related to bone health among middle-aged and elderly chinese in klang valley, malaysia.  - international journal of environmental research and public health.  1-21. 

muhammad aklil abd rahim, fadzrul hafiz johani, shamsul azhar shah, mohd rohaizat hassan,mohd rizal abdul manaf.  (2019).  13c-urea breath test accuracy for helicobacter pylori infection in the asian population: a meta-analysis.  - annals fo global health.  1-10. 

naren kumar surendra , mohd rizal abdul manaf, lai seong hooi, sunita bavanandan, fariz safhan mohamad nor, shahnaz shah firdaus khan, loke meng ong and abdul halim abdul gafor.  (2019).  health related quality of life of dialysis patients in malaysia: haemodialysis versus continuous ambulatory peritoneal dialysis.  - bmc nephrology.  1-10. 

m rizal abdul manaf, madihah mustafa, mohd rizam abdul rahman, khairul hazdi yusof, noor azah abd aziz.  (2016).  factors influencing the prevalence of mental health problems among malay elderly residing in a rural community: a cross-sectional study.  - plos one.  1-12. 

sami ar al-dubai, jane sempeho, hematram yadav, ramesh sahathevan, zhe k law, mohd ra manaf.  (2016).  pre-hospital delays in ischemic stroke patients in a malaysian tertiary hospital.  - international journal of stroke.  1-2. 

zobaida edib, verasingam kumarasamy, norlia binti abdullah, am rizal and sami abdo radman al-dubai.  (2016).  most prevalent unmet supportive care needs and quality of life of breast cancer patients in a tertiary hospital in malaysia.  - health and quality of life outcomes.  1-10. 

mohd rizal abdul manaf, mastura mohd tahir, hatta sidi, marhani midin, nik ruzyanei nik jaafar, srijit das & abdul muizz abd malek.  (2014).  pre-marital sex and its predicting factors among malaysian youths.  - comprehensive psychiatry.  55(S1):S82-S88. 

hasriza hashim, shahrul azmin, hamizah razlan, nafisah wan yahya, hui jan tan, m rizal abdul manaf, norlinah mohamed ibrahim.  (2014).  eradication of helicobacter pylori infection improves levodopa action, clinical symptoms and quality of life in patients with parkinson`s disease.  - plos one.  1-7. 

adibah hanim ismail, rawa bau, hatta sidi, ng chong guan, marhani midin, nik ruzyanei nik jaafar, srijit das, mohd rizal abdul manaf.  (2014).  orgasmic dysfunction among malay diabetic women in malaysia.  - comprehensive psychiatry.  55(S1):S29-S33. 

kurubaran ganasegeran, j. michael menke, vasudeva murthy challakere ramaswamy, mohd rizal abdul manaf, aled m. alabsi & sami abdo radman al-dubai.  (2014).  level and determinants of knowledge of symptomatic knee osteoarthritis among railway workers in malaysia.  - biomed research international.  Article ID 370273. 

kurubaran ganasegeran, pukunan renganathan, mohd rizal abdul manaf, sami abdo radman al-dubai.  (2014).  factors associated with anxiety and depression among type 2 diabetes outpatients in malaysia: a descriptive cross-sectional single-centre study.  - bmj open.  4:e004794. 

tuti ningseh mohd-dom, rasidah ayob, amrizal mohd-nur, mohd rizal abdul-manaf, noorlin ishak, khairiyah abdul-muttalib, syed mohamed aljunid, yuhaniz ahmad-yaziz, hanizah abdul-aziz, noordin kasan.  (2014).  cost analysis of periodontitis management in public sector specialist dental clinics.  - bmc oral health.  2014, 14:56. 

y kanaheswari, r kavitha, amm rizal.  (2014).  urinary tract infection and bacteriuria in children performing clean intermittent catheterization with reused catheters.  - spinal cord.  209-212. 

sempeho j, rizal abdul manaf m, sahathevan r, al-dubai s, kang law z.  (2014).  determinants and effects of pre-hospitalisation delays in stroke patients in universiti kebangsaan malaysia medical centre (ukmmc).  - neuroepidemiology.  102-3. 

m fairuz ali, na aziz, afa aziz, am rizal, s azmin.  (2012).  early functional recovery of ischaemic stroke patients after 3 months of transfer of care from hospital to the community: a prospective observational study.  - cerebrovascular diseases.  34(suppl 1): 46. 

emad a shdaifat, mohd rizal abdul manaf.  (2012).  quality of life among jordanian patients on haemodialysis and their caregivers.  - bmc public health.  12(Suppl 2):A14. 

tuti ningseh mohd dom, syed mohamed al junid, mohd rizal abd manaf, khairiyah abd muttalib, ahmad mohd asari, rasidah ayob, yuhaniz yaziz, noorlin ishak, hanizah abdul aziz, noordin kasan.  (2012).  patient-reported outcomes after one year of periodontal treatment at public specialist dental clinics in peninsular malaysia.  - bmc public health.  12(Suppl 2):A4. 

tuti ningseh mohd dom, shahida mohd said, aznida firzah abdul aziz, mohd rizal abdul manaf, syed mohamed aljunid.  (2012).  periodontal disease as an indicator of chronic non-communicable diseases: evidence from literatures.  - bmc public health.  12(Suppl 2):A26. 

sharifa ezat wp, azimatun noor aizuddin, zakiah zainuddin, mohd rizal and manaf, syed aljunid.  (2012).  catastrophic health expenditure and its influencing factors in malaysia.  - bmc health services research.  12(Suppl 1):7. 

kurubaran ganasegeran, sami ar al-dubai, ahmad m qureshi, al-abed aa al-abed, rizal am, syed m aljunid.  (2012).  social and psychological factors affecting eating habits among university students in a malaysian medical school: a cross sectional study.  - nutrition journal.  11 (1) , art. no. 48. 

ms natrah, sharifa ezat wp, ma syed, mohd am rizal, s saperi, s. ismail, i fuad, muhd ma azrif.  (2012).  economic evaluation of monoclonal antibody in the management of colorectal cancer in malaysia.  - bmc health services research.  12(Suppl 1):7. 

hanafiah alfizah, mohamed ramelah, abdul m. rizal, abdullah s. anwar and mohamed r. isa.  (2012).  association of malaysian helicobacter pylori virulence polymorphisms with severity of gastritis and patients` ethnicity.  - helicobacter.  17(5): 340-349. 

natrah mohd, sharifa ezat, syed mohamed aljunid, mohd rizal abdul manaf, saperi sulong, ismail sagap,muhd azrif.  (2012).  cost analysis of colorectal cancer (crc) management in ukm medical centre using clinical pathway.  - bmc public health.  12(Suppl 2):A40. 

ramelah mohamed, alfizah hanafiah, isa m rose, mohd rizal a manaf, shiekh anwar abdullah, ismail sagap, a van belkum, jasmi a yaacob.  (2009).  helicobacter pylori caga gene variants in malaysians of different ethnicity.  - european journal of clinical microbiology and infectious diseases.  28(7):865-869.