1. Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
2. Clinical Medicine, Sanquan College of Xinxiang Medical University, Xinxiang, Henan 453003, China
3. Department of Gastroenterology, The First People’s Hospital of Shangqiu City Affiliated to Xinxiang Medical University, Shangqiu, Henan 476100, China
4. Department of Gastroenterology, Wuhu First People’s Hospital, Wuhu, Anhui 241000, China
5. Department of Gastroenterology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215008, China
6. Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 251006, China
7. Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, China
8. Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450000, China
9. Department of Gastroenterology, The Affiliated Hospital of Jining Medical College, Jining, Shandong 272004, China
10. Department of Gastroenterology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, China
11. Department of Gastroenterology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China.