1. The Third People's Hospital of Chongqing; Department of Endocrinology & Metabolism; Pibashan N0 104 Chongqing China 400014
2. West China Hospital, Sichuan University; Department of Gastrointestinal Surgery; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041
3. West China Second University Hospital, West China Women's and Children's Hospital; Department of Obstetrics and Gynecology; No. 17, Section Three, Ren Min Nan Lu Avenue Chengdu Sichuan China 610041
4. West China Hospital, Sichuan University; Department of Nephrology; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041