Wei, Daimin1,2,3; Liu, Jia-Yin4,5; Sun, Yun6,7,8; Shi, Yuhua1,2,3; Zhang, Bo9; Liu, Jian-Qiao10; Tan, Jichun11; Liang, Xiaoyan12; Cao, Yunxia13; Wang, Ze1,2,3; Qin, Yingying1,2,3; Zhao, Han1,2,3; Zhou, Yi14; Ren, Haiqin15; Hao, Guimin16; Ling, Xiufeng17; Zhao, Junzhao18; Zhang, Yunshan19; Qi, Xiujuan20; Zhang, Lin21; Deng, Xiaohui22; Chen, Xiaoli23; Zhu, Yimin24; Wang, Xiaohong25; Tian, Li-Feng26; Lv, Qun27; Ma, Xiang4,5; Zhang, Heping28; Legro, Richard S29; Chen, Zi-Jiang1,2,3,6,7,8

1.Center for Reproductive Medicine,Cheeloo College of Medicine,Shandong University,Jinan,China;
2.The Key Laboratory of Reproductive Endocrinology of Ministry of Education,Jinan,China;
3.National Research Center for Assisted Reproductive Technology and Reproductive Genetics,Jinan,China;
4.Department of Reproductive Medicine,First Affiliated Hospital of Nanjing Medical University/Jiangsu Province Hospital,Nanjing,China;
5.State Key Laboratory of Reproductive Medicine,Nanjing,China;
6.Center for Reproductive Medicine,Ren Ji Hospital,Shanghai,China;
7.School of Medicine,Shanghai Jiao Tong University,Shanghai,China;
8.Shanghai Key Laboratory of Assisted Reproduction and Reproductive Genetics,Shanghai,China;
9.Center for Reproductive Medicine,Maternal and Child Health Hospital in Guangxi,Guangxi,China;
10.Department of Reproductive Medicine,Key Laboratory for Major Obstetric Diseases of Guangdong Province,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes,the Third Affiliated Hospital of Guangzhou Medical University,Guangzhou,China;
11.Reproductive Medicine Center,Department of Obstetrics and Gynecology,Shengjing Hospital,China Medical University,Shenyang,China;
12.Reproductive Medicine Research Centre,the 6th Affiliated Hospital of Sun Yat-sen University,Guangzhou,China;
13.Department of Obstetrics and Gynecology,Reproductive Medicine Center,The First Affiliated Hospital,Anhui Medical University,Hefei,China;
14.Center for Reproductive Medicine,Qingdao Women's and Children's Hospital,Qingdao University,Qingdao,China;
15.Department of Reproductive Medicine,Shenyang Dongfang Jinghua Hospital,Shenyang,China;
16.Department of Reproductive Medicine,the Second Hospital of Hebei Medical University,Shijiazhuang,China;
17.Department of Reproductive Medicine,the affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University,Nanjing Maternity and Child Health Care Hospital,Nanjing,China;
18.Reproductive Medical Center,the Second Affiliated Hospital of Wenzhou Medical College and Yuying Children's hospital,Wenzhou,China;
19.Center for Reproductive Medicine,Tianjin Central Hospital of Obstetrics and Gynecology,Tianjin,China;
20.Center for Reproductive Medicine,the Affiliated Hospital of Qingdao University,Qingdao,China;
21.Department of Occupational Hygiene,School of Public Health and Management,Weifang Medical University,Weifang,China;
22.Center for Reproductive Medicine,Qilu Hospital of Shandong University,Jinan,China;
23.Division of Reproductive Medicine,Department of Obstetrics and Gynecology,Sun Yat-Sen Memorial Hospital,Sun Yat-Sen University,Guangzhou,China;
24.Department of Reproductive Endocrinology,Women's Hospital,School of Medicine,Zhejiang University,Hangzhou,China;
25.Reproductive Medical Center,Tangdu Hospital,the Fourth Military Medical University,Xi'an,China;
26.Reproductive Medical Center,Jiangxi Provincial Maternal and Child Health Hospital,Nanchang,China;
27.Center for Reproductive Medicine,Sichuan Provincial People's Hospital,Chengdu,China;
28.Department of Biostatistics,Yale University School of Public Health,New Haven,United States;
29.Department of Obstetrics and Gynecology,Penn State College of Medicine,Hershey,United States