1. Center for Reproductive Medicine, Cheeloo College of Medicine Shandong University, Key laboratory of Reproductive Endocrinology of Ministry of Education, Shandong Key Laboratory of Reproductive Medicine, Shandong Provincial Clinical Research Center for Reproductive Health Jinan China
2. Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Center for Reproductive Medicine, Ren Ji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai China