1. Department of Medical Oncology, Cancer Center, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan 610041, P.R. China
2. Department of Obstetrics and Gynecology, Chengdu Integrated TCM and Western Medical Hospital, Chengdu, Sichuan 610041, P.R. China