Xi-Sheng Leng, MD, PhD, is a Professor of Surgery and Doctoral Supervisor at Peking University People's Hospital. He currently serves as Director of the Department of Surgery at Peking University and Honorary President of the Surgical Branch of the Chinese Medical Doctor Association. He is also the Editor-in-Chief and Director of the Editorial Office of the Chinese Journal of General Surgery. His research focuses on the pathogenesis of portal hypertension, hepatocyte and islet cell transplantation, and immunodiagnosis and immunotherapy of hepatocellular carcinoma. His clinical expertise includes hepatobiliary and pancreatic surgery, gastrointestinal surgery, liver transplantation, and surgical treatment of portal hypertension. Professor Leng has received numerous academic honors, including the Third Prize of the Science and Technology Progress Award from the Ministry of Health of China (1994), the Third Prize of the Wu Jieping–Johnson & Johnson Medical Achievement Award (1995), the Second Prize of the Chinese Medical Science and Technology Award (2007), and the First Prize of the Natural Science Award of the Ministry of Education of the People's Republic of China (2008). Over the past decade, he has published more than 200 research articles in domestic and international medical journals and contributed to more than 10 clinical surgery textbooks and monographs.