1. Department of Gastroenterology West China Hospital, Sichuan University Chengdu China
2. Centre for Inflammatory Bowel Disease West China Hospital, Sichuan University Chengdu China
3. Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease‐Related Molecular Network West China Hospital, Sichuan University Chengdu China
4. The Center of Gerontology and Geriatrics National Clinical Research Center for Geriatrics West China Hospital, Sichuan University Chengdu China