Huang, Xiangyuan http://orcid.org/0000-0002-9682-9387
Ye, Ying
Li, Yun
Zhang, Ying
Zhang, Yi
Jiang, Yuan
Chen, Xiaotian
Wang, Liuhui
Yan, Weili http://orcid.org/0000-0002-7633-7449
Funding for this research was provided by:
Shanghai Municipal Population and Family Planning Commission (2015-82)
Article History
Received: 30 September 2019
Revised: 5 March 2020
Accepted: 11 March 2020
First Online: 2 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.