Li, Hai-ming
Feng, Feng
Qiang, Jin-wei
Zhang, Guo-fu
Zhao, Shu-hui
Ma, Feng-hua
Li, Yong-ai
Gu, Wei-yong
Funding for this research was provided by:
National Natural Science Foundation of China (81471628, 81501438)
Shanghai Municipal Commission of Health and Family Planning (2013ZYJB0201, 2013SY075, ZK2015A05)
Nantong Municipal Commission of Health and Family Planning Science Foundation for Youth (WQ2016065)
Article History
First Online: 20 March 2018
Compliance with ethical standards
:
: This study was funded by National Natural Science Foundation of China (Nos. 81471628 and 81501439), Nantong Municipal Commission of Health and Family Planning Science Foundation for Youth (No. WQ2016065), and Shanghai Municipal Commission of Health and Family Planning (Nos. 2013ZYJB0201, 2013SY075, and ZK2015A05).
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with 1964 Helsinki declaration and its later amendments or comparable ethical standard.
: Informed consent was obtained from all individual participants included in the study.