Mok Hing Yiu Professor of Medicine and head of the Division of Gastroenterology and Hepatology, The Chinese University of Hong Kong. His research focuses on viral hepatitis and non-alcoholic fatty liver disease (NAFLD), in particular the use of non-invasive tests for screening and diagnosis. He has over 450 publications in international medical journals, and his latest h index is 89. 
Together with the Asia-Pacific Working Party, he wrote the Asia-Pacific Guidelines on the Management of NAFLD in 2018. He is an associate editor of Clinical Gastroenterology and Hepatology and an editorial board member of the  Journal of Hepatology, Hepatology, and Alimentary Pharmacology & Therapeutics.
He served as the president of the Hong Kong Association for the Study of Liver Diseases from 2015 to 2017. He has received research awards from the Asian Pacific Association for the Study of the Liver, Asian Pacific Digestive Week Federation, British Society of Gastroenterology, Hong Kong College of Physicians and the Food and Health Bureau