ilham ismail, najma kori, chee lan lau, azmi mohd tamil, ramliza ramli, xiong khee cheong, petrick periyasamy.  (2023).  mortality rate and its risk factors for multidrug resistance acinetobacter baumannii bacteraemiain universiti kebangsaan malaysia medical centre (ukmmc).  - 3rd antimicrobial resistance symposium 2023.  39. 

nalini p, aaron i, petrick p, najma k, cheong xk, lau cl, rozita h, zetti z.  (2023).  clinical characteristics and outcomes of covid-19 patients during 2021 wave at hospital canselor tuanku muhriz.  - medicine & health.  5. 

nurul amirah mohamad farook, silvia argimón, muttaqillah najihan abdul samat, sharifah azura salleh, sunita sulaiman, toh leong tan, petrick periyasamy, chee lan lau, zalina ismail, nor azila muhammad azami, mia yang ang, hui-min neoh.  (2022).  diversity and dissemination of methicillin-resistant staphylococcus aureus (mrsa) genotypes in southeast asia.  - tropical medicine and infectious disease.  1-32. 

najma kori, farida islahudin, muhammad yusuf zawir abd rahim, petrick periyasamy, noraida mohamed shah, ernieda md hatah, lau chee lan.  (2022).  corticosteroid effectiveness among hospitalised covid-19 patients in malaysia.  - journal of infection in developing countries.  1390-1397. 

wan rahiza wan mat, cheah saw kian, aliza mohamad yusof, lau chee lan, michelle tan hwee peng, petrick periyasamy.  (2022).  pharmacotherapeutics in the critically ill covid-19 patients.  - malaysian journal of medicine and health sciences.  316-323. 

sy hwan ang, petrick periyasamy, shamsul azhar shah, ramliza ramli, najma kori, chee lan lau.  (2022).  the risk factors for complications and survival outcomes of klebsiella pneumoniae bacteraemia in hospital canselor tuanku muhriz universiti kebangsaan malaysia.  - medical journal malaysia.  409-414. 

muhammad hazwan nasarudin, najma kori,ramliza ramli, rozita hod,chee lan lau,petrick periyasamy.  (2022).  extended-spectrum beta-lactamase (esbl) bacteremia: looking into the risk factors of mortality from malaysian perspective.  - 5th international conference on tropical medicine and infectious diseases.  521. 

muhammad hazwan n, najma k, ramliza r, rozita h, chee ll, petrick p.  (2022).  risk factors for severe outcomes in extended-spectrum beta-lactamase (esbl) bacteremia: a single-center study.  - medicine & health.  56-69. 

chee ll, petrick p, muhd nordin s, sarah anne r, lay yg, suet yc, kiew bp, shue hk, farah waheeda t, mei ky, sheah lg, nur jannah a, xin yc, poy kl, stephanie wyt, dexter vd, ramliza r, toh lt, aliza my, saw kc, wan rahiza wm, isa naina-mohamed.  (2022).  plethora of antibiotics usage and evaluation of carbapenem prescribing pattern in intensive care units: a single-center experience of malaysian academic hospital.  - antibiotics.  1-19. 

m sugenthiran , p periyasamy , n kori , cl lau.  (2022).  clinical significance of coagulase-negative staphylococci bacteremia its financial impact and treatment outcomes in ukmmc.  - 5th international conference on tropical medicine and infectious diseases (ictmid).  1. 

adyani md redzuan, rubina begum, farida hanim islahudin, chee lan lau, wan rahiza wan mat.  (2021).  venous thromboembolism risk assessment and prophylaxis modalities in critically ill patient.  - international journal of pharmaceutical and phytopharmacological research.  134-141. 

d. muhamad, p. periyasamy, r. ramli, l. chee lan, r. abdul rahman.  (2021).  impact of infectious diseases specialists in intensive care unit on antimicrobial utilization and patient outcomes.  - international journal of infectious diseases.  113. 

ujdora goh, wan rahiza wan mat, lau chee lan, raha abdul rahman.  (2021).  factors affecting de-escalation practices of antimicrobial use in critical care.  - medicine & health.  24. 

ilyana mohd zuhudi, wan rahiza wan mat, lau chee lan, ramliza ramli, petrick periyasamy, raha abdul rahman.  (2021).  evaluation of antimicrobial stewardship program in the general intensive care unit of a teaching hospital.  - medicine & health.  32-33. 

azlina ibrahim, isa naina mohamed, najma kori, chee lan lau, azmi mohd tamil, ramliza ramli, petrick periayasamy.  (2021).  evaluation of ceftriaxone use in the medical wards of universiti kebangsaan malaysia medical centre (ukmmc) and its outcome.  - clinical infectious diseases.  1-6. 

nurul adilla hayat jamaluddin, petrick periyasamy, chee lan lau, sasheela ponnampalavanar, pauline siew mei lai, ramliza ramli, toh leong tan, najma kori, mei kuen yin, nur jannah azman, rodney james, karin thursky and isa naina mohamed.  (2021).  point prevalence survey of antimicrobial use in a malaysian tertiary care university hospital.  - antibiotics.  1-13. 

ilyana mohd zuhudi, wan rahiza wan mat, lau chee lan, ramliza ramli, petrick periyasamy, raha abdul rahman.  (2021).  evaluation of antimicrobial stewardship program in the general intensive care unit of a teaching hospital.  - annual scientific congress 2021.  56. 

ujdora goh, wan rahiza wan mat, lau chee lan, raha abdul rahman.  (2021).  factors affecting de-escalation practices of antimicrobial use in critical care.  - annual scientific congress 2021.  55. 

azlina ibrahim, isa naina mohamed, lau chee lan, ramliza ramli, najma kori, petrick periyasamy.  (2021).  an observational prospective study on the appropriateness of ceftriaxone use in medical wards of ppukm.  - international journal of infectious diseases (ijid).  104. 

petrick periyasamy, navaneedha lingam mahalingam, najma kori, andrea ban yu lin, ramliza ramli, isa naina mohamed, lau chee lan.  (2021).  time to clinical stability in hcap in a tertiary center hospital in kuala lumpur.  - international journal of infectious diseases.  106. 

sarah anne robert*, suet yin chin, lay yen gan, chee lan lau, kiew bing pau, shue hong kong, farah waheeda tajurudin, mei kuen yin, sheah lin ghan, nur jannah azman, xin yun chua, poy kei lye, stephanie wai yee tan, muhd nordin saud, dexter van dort.  (2021).  an evaluation of interventions by clinical pharmacists in a tertiary hospital.  - malaysian journal of pharmacy.  3-6. 

ahmad izuddin mustaffa, petrick periyasamy, lau chee lan, ramliza ramli, najma kori,.  (2021).  the overly attached bacteria.  - international journal of infectious disease.  167-168. 

loke ren-zhang, lau chee-lan , yow hui-yin.  (2020).  the awareness and perception on antimicrobial stewardship among healthcare professionals in a tertiary teaching hospital malaysia.  - archive of pharmacy practice.  50-59. 

cherh yun teoh, adliah mhd. ali, noraida mohamed shah, rohana hassan and chee lan lau.  (2020).  self-perceived competence and training needs analysis on antimicrobial stewardship among government ward pharmacists in malaysia.  - jac-antimicrobial resistance.  1-8. 

cheah, saw kian, aliza mohamad yusof, rufinah teo, shereen tan, lau chee lan.  (2020).  adakah intravena vitamin b1 (thiamine) mempunyai peranan bagi pesakit kritikal yang mengalami renjatan septik?.  - impak siri 1/2020.  15. 

rayhan aghani e.amiseno, petrick periyasami, najma kori, ramliza ramli, isa naina mohamed, lau chee lan.  (2020).  the appropriateness in requesting for urine culture in ukmmc medical ward: a pre and post- educational intervention study.  - .  1-21. 

rizna cader, syazarina lau chee lian, ruslinda mustafar, rozita mohd, lydia kamaruzaman, pau kiew beng.  (2020).  protokol contrast induced nephropathy 2020.  - .  1. 

lim, m.y., abdul rahim, n., periyasamy, p., lau, c.l..  (2019).  assessment of polymyxin b associated nephrotoxicity in icu patients in a malaysian tertiary teaching hospital.  - malaysian journal of medicine and health sciences.  4. 

mohd makmor-bakry, azmi nor mohd farez ahmat, ahmad fuad shamsuddin, chee-lan lau, ramliza ramli.  (2019).  association between single trough-based area under the curve estimation of vancomycin and treatment outcome among methicillin-resistant staphylococcus aureus bacteremia patients.  - anaesthesiology intensive therapy.  218-223. 

nurfatin mohid, lau chee lan, raha abdul rahman, tuan mazlelaa tuan mahmood1, noraida mohamed shah.  (2019).  penggunaan ubat-ubatan tidak berlesen dan luar label di kalangan pesakit dewasa di unit rawatan rapi di pusat perubatan universiti kebangsaan malaysia.  - jurnal sains kesihatan malaysia.  17-20. 

nur fazlina harun, saw kian cheah, aliza mohamad yusof, chee lan lau, azlina masdar, siti nidzwani mohamad mahdi, nurlia yahya, norma mohamad, raha abdul rahman.  (2019).  intravenous thiamine as an adjuvant therapy for hyperlactatemia in septic shock patients.  - critical care and shock.  288-298. 

azlina ibrahim, isa naina mohamed, chee lan lau, ramliza ramli, najma kori, petrick periyasamy.  (2019).  appropriateness of ceftriaxone use in medical wards of ukmmc - how compliant are we?.  - antimicrobial resistance and infection control.  148. 

cl lau, j azman, n shaharuddin, c bacha lal, ma rosli, petrick periyasamy.  (2019).  observational study of iv to oral switch practice in malaysian teaching hospital.  - infection & chemotherapy.  173. 

najma kori, razman jarmin, petrick periyasamy, lau chee lan.  (2019).  new perspective of antimicrobial stewardship: changing surgeon's paradigm.  - antimicrobial resistance and infection control.  144-145. 

antimicrobial stewardship committee hctm ukm.  (2018).  hctm ppukm surgical prophylaxis guide 2018.  - .  73. 

tser wan pang, adyani md-redzuan, mohd makmor-bakry, chee lan lau, zamri zuhdi, abdul halim abd rashid, nordiah awg jalil, ramliza ramli, raha abdul rahman, wan rahiza wan mat, razman jarmin, petrick@ ramesh k periyasamy,.  (2017).  compliance of antimicrobial prophylaxis practice for surgery in malaysian teaching hospital.  - australasian society for infectious diseases annual scientific meeting 2017.  . 

ng choon seong, lau chee lan, chua xin yun, farah waheeda, sarah anee roberts ,nur jannah azman, lysia loong,pau kiew bing, kong shue hong,petrick periyasamy.  (2017).  carbapenem usage in medical wards an antibiotic stewardship feedback project.  - annual scientific meeting on emerging infectious threat.  . 

yin mei kuen, lau chee lan.  (2017).  tdm booklet 2017.  - .  1-40. 

noor hassim ismail, ismail mohd saiboon, abdul rashid abd kader, asri ahmad, wan irfani wan mahyudin, jaafar md zain, zaiton zakaria, roslan harun, anita sulong, hanizah mohd yusoff, roslan daud, fuziah abdul hamid, mohd nor hisham mohd ali, hairol faizal.  (2015).  polisi dan garispanduan pelan bencana dalaman pusat perubatan ukm.  - .  69. 

xc tan, m makmor-bakry, cl lau, fw tajarudin, aa raymond.  (2015).  factors affecting adherence to antiepileptic drugs therapy in malaysia.  - neurology asia.  235-241. 

cl lau, nj azman, sl ghan, fw tajuruddin, sh kong, kb pau, ls loong, sa robert, yk lai, mk yin, p periyasamy.  (2014).  impact of carbapenems stewardship in medical wards in a malaysian teaching hospital.  - 15th asia pacific congress of clinical microbiology and infection.  . 

chan gn, evelyn hjw, farah wt, izyan di, kong sh, lai yk, lau cl, leong sl, loong ls, michelle thp, pau kb, sarah ar, shairyzah ah, supadhara r, andrea byl, kong wy, petrick p, rizna ac.  (2013).  handbook of renal dose adjustment for common antimicrobials.  - .  17. 

lau chee lan, nur jannah azman, gan sheah lin, kong shue hong, pau kiew bing, loong ly sia, sarah anne robert, farah waheeda tajurudin, lai yin key, yin mei kuen, petrick periyasamy.  (2013).  antimicrobial stewardship program in medical wards ukmmc.  - 8th malaysia indonesia brunei medical sciences conference.  . 

j y cheong, m makmor-bakry, c l lau, r abdul rahman.  (2012).  the relationship between trough concentration of vancomycin and effect on methicillin-resistant staphylococcus aureus in critically ill patients.  - south african medical journal.  102(7):616-619. 

mohd makmor-bakry, aslinda jamil, lau chee lan, raha abdul rahman.  (2011).  comparison of vancomycin pharmacokinetic parameters between a pecialized care asian cohort and published western data.  - international journal of pharmacy and pharmaceutical sciences.  3(4):406-408. 

lau cl, & cheah fc.  (2009).  the development of a pre-printed order sheet and insulin infusion regime to reduce medication error in the nicu.  - journal of health management.  Suppl:64. 

lau cl & cheah fc.  (2009).  the development of a pre-printed order sheet and insulin infusion regime to reduce medication error in the nicu.  - 8th ministry of health of malaysia-academy of medicine of malaysia scientific meeting 2009.  . 

kong, sh; pau, kb; lau, cl; hassan, sm; fong, yw.  (2009).  analysis of clinical-pharmacist-initiated verifications undertaken in a malaysian teaching hospital.  - pharmacy world & science.  .