1. Department of Gastroenterology Second Affiliated Hospital of Zhejiang University School of Medicine Hangzhou China
2. Institution of Gastroenterology Zhejiang University Hangzhou China
3. Department of Gastroenterology The Sixth Affiliated Hospital of Wenzhou Medical University Lishui People's Hospital China
4. Department of Endocrinology and Metabolism Second Affiliated Hospital of Zhejiang University School of Medicine Hangzhou China
5. Department of Gastroenterology Sir Run Run Shaw Hospital Zhejiang University Hangzhou China