Li, Qin
Qu, Hui Jun
Lv, Dan
Yeh, Ming-Kung
Sun, Shusen
Li, Ling
Liao, Yun http://orcid.org/0000-0001-9038-9635
Funding for this research was provided by:
2014 Changning district health and family planning system medical specialty project (2014201001)
2018 Scientific Research Topics of Shanghai Health and Family Planning Commissionand Family Planning (201840079)
Article History
Received: 22 March 2019
Accepted: 17 September 2019
First Online: 8 November 2019