Chen, Beili
Li, Lin
Wang, Jing
Li, Tengyan
Pan, Hong
Liu, Beihong
Zhou, Yiran
Cao, Yunxia
Wang, Binbin
Funding for this research was provided by:
National Natural Science Foundation of China (81701405)
National Research Institute for Family Planning (2017GJZ05)
Article History
Received: 15 January 2018
Accepted: 8 May 2018
First Online: 18 June 2018
Ethics approval and consent to participate
: The study protocol was in accordance with the tenets of the Declaration of Helsinki and was approved by Anhui Medical University’s ethics committee.
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