机构：Department of Gastroenterology, Chinese Academy of Medical Sciences & Peking Union Medical College Hospital, Beijing 100730, China,Section of Gastroenterology, Hepatology and Nutrition, University of Chicago Medicine, Chicago, USA.
机构：Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China,Department of Hematology, West China Hospital, Chengdu, Sichuan 610047, China,Department of Hematology, Peking Union Medical College Hospita
