1. Department of Gastroenterology, Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine Nanjing University of Chinese Medicine Nanjing China
2. Department of Gastroenterology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital Medical School of Nanjing University Nanjing China
3. Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Drum Tower Hospital Medical School of Nanjing University Nanjing China