Peng, Yanhua
Yang, Taobo
Tang, Xixi
Chen, Fei
Wang, Shouyong
Funding for this research was provided by:
National Natural Science Foundation of China (30700785)
the Chongqing Health and Family Planning Commission (2015MSXM040)
Article History
Received: 21 January 2019
Accepted: 14 December 2019
First Online: 24 December 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.