Liu, Wei
Chen, Xiujuan
Wu, Min
Li, Lin
Liu, Jiani
Shi, Jing
Hong, Tian
Funding for this research was provided by:
the Major research project of Health and Family Planning Commission of Wuhan Municipality in 2017 (WX17B03)
Article History
Received: 13 December 2018
Accepted: 27 February 2020
First Online: 5 March 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.