Chen, Jie
Fang, Meng
Chen, Xiaoling
Yi, Changhong
Ji, Jun
Cheng, Cheng
Wang, Mengmeng
Gu, Xing
Sun, Quansheng
Gao, Chunfang
Funding for this research was provided by:
the Natural Science Foundation of China (No. 81101639; 81271925; 81301877)
the General Program of Shanghai Health and Family Planning Commission (No 201540089)