1. Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Inflammatory Bowel Disease Research Center; Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease , 160# Pu Jian Ave, Shanghai 200127 , China
2. State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University , Xi’an , China
3. Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University , Guangzhou 510080 , China