1. Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200072, China
2. Shanghai Tenth Hospital, School of Clinical Medicine of Nanjing Medical University, Shanghai 200072, China
3. Department of Gerontology, Shanghai Minhang District Central Hospital, Shanghai 201100, China
4. Department of Gastroenterology, Putuo People’s Hospital, Tongji University School of Medicine, Shanghai 200060, China