1. Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
2. Department of Clinical Laboratory, Kunshan First People’s Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu 215300, China
3. Department of Gastroenterology, Shanghai Tenth People’s Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai 200072, China
4. Department of Gastroenterology, Jinshan Hospital of Fudan University, Jinshan, Shanghai 201508, China