1. Department of Gastroenterology West China‐Guang’an Hospital Sichuan University Guang’an China
2. Department of Obstetrics and Gynecology The Second Affiliated Hospital Chongqing Medical University Chongqing China
3. Department of Endocrinology The Second Affiliated Hospital of Chongqing Medical University Chongqing China
4. Clinical Medical College The First Affiliated Hospital of Chengdu Medical College Chengdu China