Tan, Xuan
Wang, Guobin
Tang, Yong
Bai, Jie
Tao, Kaixiong
Ye, Lin
Funding for this research was provided by:
Hubei Province health and family planning scientific research project (WJ2017Q023)
Natural Science Foundation of Hubei Province (2016 CFB356)
Hubei Province health and family planning scientific research project (WJ2017M113)