Li, Xuhong
Zhang, Chuan
Dias, Nicholas
Liu, Jiaojiao
Hu, Fang
Yang, Shuo
Zhou, Yanhua
Zhang, Yingchun https://orcid.org/0000-0002-1927-4103
Funding for this research was provided by:
Health and Family Planning Commission of Hunan Provinceommission of Health and Family Planning (B2014-040)
Hunan Provincial Science and Technology Department (2015WK3008)
Central South University (2013-94)
Article History
Received: 12 December 2018
Accepted: 5 February 2019
First Online: 12 March 2019
Compliance with ethical standards
:
: None.
: None.
: The study protocol was reviewed and approved by the Institutional Review Board of The Third Xiangya Hospital, Central South University. All women gave written informed consent.