rajdave singh sadu singh, azlanudin azman, jegan thanabalan, chik ian, boo han sin, razman jarmin, fahrol fahmy jaafar.  (2026).  combination use of intravenous ketamine-midazolam as a sedative agent in endoscopic retrograde cholangiopancreatography: a randomized control trial.  - scientific reports.  1 - 10. 

nihr global health research unit on global surgery and the globalsurg collaborative (ian chik, azrina syarizad kuthubul zaman, chia chung hon, saiyidah adila mohd adibi, koay kean leong, azlanudin azman).  (2026).  safety and equity in scaling minimally invasive surgery worldwide in 109 countries using cholecystectomy as a tracer procedure: a prospective cohort study.  - the lancet global health.  199 - 212. 

nihr global health research unit on global surgery, covidsurg collaborative, nazimi abd jabar, roszalina ramli, syed nabil, mae lyn bastion, farrah-hani imran, i chik, norshamsiah md din, ainal adlin naffi, mohd hairul nizam harun.  (2026).  30-day postoperative mortality and the effects of hospital preparedness during the covid-19 pandemic: a pooled analysis of prospective international cohort studies.  - lancet regional health-europe.  1 - 11. 

zhun shen tan, elvin jia hong lee, rou bei tan, azlanudin azman and ian chik.  (2026).  case report: fatal mesenteric venous thrombosis and progressive bowel ischemia following right hemihepatectomy.  - frontiers in surgery.  1 - 7. 

elvin jia hong lee, zhun shen tan, azlanudin azman, isa azzaki zainal, muhammad zahid abdul muien and ian chik.  (2026).  case report: making room for radicality: balancing liver reserve and oncologic clearance in hilar cholangiocarcinoma through portal vein embolisation.  - frontiers in surgery.  1 - 7. 

han sin boo, ian chik, chai soon ngiu, shyang yee lim, razman jarmin.  (2018).  high resolution impedance manometry: a necessity or luxury in esophageal motility disorder?.  - american journal of case reports.  998-1003. 

farrah-hani imran, chik ian, enda gerard kelly, razman jarmin.  (2018).  the guru-ukm method: synergistic effect of hydrogel, hydrofibre and dermal conservation in burn wound management.  - international medical journal of malaysia.  . 

rajdave singh sadu singh, azlanudin azman, jegan thanabalan, chik ian, boo han sin, razman jarmin, fahrol fahmy jaafar.  (2026).  combination use of intravenous ketamine-midazolam as a sedative agent in endoscopic retrograde cholangiopancreatography: a randomized control trial.  - scientific reports.  1 - 10. 

nihr global health research unit on global surgery and the globalsurg collaborative (ian chik, azrina syarizad kuthubul zaman, chia chung hon, saiyidah adila mohd adibi, koay kean leong, azlanudin azman).  (2026).  safety and equity in scaling minimally invasive surgery worldwide in 109 countries using cholecystectomy as a tracer procedure: a prospective cohort study.  - the lancet global health.  199 - 212. 

nihr global health research unit on global surgery, covidsurg collaborative, nazimi abd jabar, roszalina ramli, syed nabil, mae lyn bastion, farrah-hani imran, i chik, norshamsiah md din, ainal adlin naffi, mohd hairul nizam harun.  (2026).  30-day postoperative mortality and the effects of hospital preparedness during the covid-19 pandemic: a pooled analysis of prospective international cohort studies.  - lancet regional health-europe.  1 - 11. 

zhun shen tan, elvin jia hong lee, rou bei tan, azlanudin azman and ian chik.  (2026).  case report: fatal mesenteric venous thrombosis and progressive bowel ischemia following right hemihepatectomy.  - frontiers in surgery.  1 - 7. 

elvin jia hong lee, zhun shen tan, azlanudin azman, isa azzaki zainal, muhammad zahid abdul muien and ian chik.  (2026).  case report: making room for radicality: balancing liver reserve and oncologic clearance in hilar cholangiocarcinoma through portal vein embolisation.  - frontiers in surgery.  1 - 7. 

izad iskandar, zamri zuhdi, azlanuddin azman, chik ian.  (2019).  kajian untuk melihat keberkesanan masa pendek untuk pemeriksaaan ct scan kepala bagi kumpulan trauma yang khusus untuk kecederan kepala yang serius melalui kemalangan.  - surgical research day 2019.  5. 

chik ian, adila adibi.  (2026).  caffeine absorption as a functional biomarker of gastrointestinal absorption in patients with intestinal failure: a prospective case- control study.  - international congress of medicine and health 2026.  . 

chik ian, ting-shuan wu,yi ting lin, tiing -foong siow, kouhsin chen.  (2023).  laparoscopic hepatectomy and tumor thrombectomy for hepatocellular carcinoma with ivc thrombus.  - ills 4th world congress.  18. 

y. c. tan, m. mustangin, n. rosli, n. m. isa, t. y. low, p. y. lee, d. k. chellappan, r. jarmin, z. zuhdi, a. azman, c. ian, n. m. yusof, l. c. lim.  (2023).  spatial proteome mapping of annotated tumour regions in pancreatic ductal adenocarcinoma tissues reveals eight distinct tumour subpopulations.  - 22nd human proteome organization 2023 world congress.  1. 

muhammad hafiz mi, chik ian.  (2022).  randomized controlled study the effectiveness and safety of ketamine as a sedative agent in ercp.  - assessment of dissertation defense day.  08. 

si liew , ian chik , zamri zuhdi , azlanuddin azman , razman jarmin , farrah-hani imran , azarinah izaham.  (2022).  intraoperative intravenous human albumin in improving pancreaticoduodenectomy outcomes : a pilot study.  - assessment of dissertation defense day.  31.