Affiliation: | 1. Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China;2. Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China Department of Medical Oncology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China;3. Department of Gastroenterology, Nanjing Qixia District Hospital, Nanjing, China |