Dr. Tan To Cheung is Chief of Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Queen Mary Hospital, and Vice President of Hong Kong Society of Hepatobiliary and Pancreatic Surgery, as well as a council member of The Hong Kong Liver Foundation. He is currently Clinical Associate Professor of The University of Hong Kong. Dr. Cheung is a world-renowned leading expert in the field of laparoscopic liver resection for primary liver cancer. He has performed the most laparoscopic liver hepatectomies in Hong Kong with good outcomes and zero mortality. He has published the results of laparoscopic hepatectomies at Queen Mary Hospital in various journals, including in Annals of Surgery twice. He presented his work on laparoscopic liver resection in patients with cirrhosis at the 135th American Surgical Association annual meeting. The papers he published have been highly cited (>200 citations since 2013 and >80 citations since 2016). He completed the degree of Doctor of Medicine in 2018 with the thesis “Application of Minimally Invasive Hepatectomy for Liver Cancer”. Dr. Cheung is very active and outspoken in this field internationally. He is the founding member of International Laparoscopic Liver Surgery Society and was elected as an advisory board member in 2019. Currently he is Vice Chair of Radiology Committee of International Liver Transplant Society. Dr. Cheung is an active researcher with successful grant records. He has been Principle Investigator and Co-investigator of various studies with grants from UGC HK and Mainland China totaling more than 42 million dollars. Dr. Cheung was a recipient of G.B. Ong Visiting Fellowship in Surgery 2013 and James IV Traveling Fellowship 2017. He has coauthored more than 200 peer-reviewed articles and other publications, and is frequently invited to lecture internationally and present at plenary sessions. He has mentored a large number of trainees, including postgraduates and overseas academics.