Shanghai Jiao Tong University (SJTU) - Division of Gastroenterology and Hepatology, Shanghai Jiao Tong University (SJTU) - Division of Gastroenterology and Hepatology, Shanghai Jiao Tong University (SJTU) - Division of Gastroenterology and Hepatology, Tianjin Medical University - Department of Gastroenterology and Hepatology, Southern Medical University - Department of Gastroenterology, Government of the People's Republic of China - Department of Gastroenterology, Xiamen University - Department of Gastroenterology, Shanghai Jiao Tong University (SJTU) - Division of Gastroenterology and HepatologyNanjing University - Department of Gastroenterology, Tongji University - Department of Gastroenterology, Shanghai Jiao Tong University (SJTU) - Clinical Research Center, Southern Medical University - Department of Gastroenterology, Tongji University - Department of Gastroenterology, Nanjing University - The Affiliated Drum Tower Hospital, Tianjin Medical University - Department of Gastroenterology and Hepatology, Xiamen University - Department of Gastroenterology, Government of the People's Republic of China - Seventh Medical Center, Government of the People's Republic of China - Seventh Medical Center, Southern Medical University - Department of Gastroenterology, Xiamen University - Zhongshan Hospital, Shanghai Jiao Tong University (SJTU) - Division of Gastroenterology and Hepatology, Tianjin Medical University - Department of Gastroenterology and Hepatology and Shanghai Jiao Tong University (SJTU) - State Key Laboratory for Oncogenes and Related Gene