Zhu, Qingwen http://orcid.org/0000-0002-8815-4412
Ni, Yufei
Wang, Jing
Yin, Honggang
Zhang, Qin
Zhang, Lingli
Bian, Wenjun
Liang, Bo
Kong, Lingyin
Xuan, Liming
Lu, Naru
Funding for this research was provided by:
Jiangsu Province Association of Maternal and Child Health (f201560)
Article History
Received: 24 April 2018
Accepted: 12 August 2018
First Online: 14 August 2018
Compliance with ethical standards
:
: Qingwen Zhu, Yufei Ni, Jing Wang, Honggang Yin, Qin Zhang, Lingli Zhang, Wenjun Bian, Bo Liang, Lingyin Kong, Liming Xuan and Naru Lu declare that they have no conflict of interest.
: The ethical committee of Nantong Municipal Maternal and Child Health Hospital approved this study.
: All study participants gave written informed-consent.