Deputy Chief Hospital Manager, Head of Department of Internal Medicine, and Head of Division of Gastroenterology & Hepatology of Union Hospital in Hong Kong

Honorary Clinical Professor of Faculty of Medicine, The Chinese University of Hong Kong (CUHK)

Associate editor of Hepatology International 

Associate editor for Journal of Hepatology (2014-2019)

Chairman of Strategic Technical Advisory Committee on Viral Hepatitis for the Western Pacific Regional Office of World Health Organization (since 2015)

Global Council Member and Scientific Committee Chair in International Association for the Study of the Liver (IASL)

Okuda Lecturer in Asia Pacific Digestive Week in 2018

Published over 500 peer reviewed articles in scientific journals

Highly cited researcher under Clarivate Analytics for producing multiple top 1% cited publications since 2018