Affiliation: | 1. Division of Gastroenterology and Hepatology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institution of Digestive Disease, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health (Shanghai Jiao Tong University), Shanghai , China;2. The Third People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China |