Department of Gastroenterology, Rui Jin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China;
Department of Gastroenterology, Rui Jin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China;
Department of Gastroenterology, Rui Jin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, China;