1. Department of Gastroenterology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China
2. Endoscopy Center, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China
3. Department of Pediatric Respiratory, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200092, China
4. Department of Gastroenterology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200080, China
5. Research Center, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, China
6. Shanghai Key Lab of Pediatric Gastroenterology and Nutrition, Shanghai 200092, China