Hu, X.-L.
Xu, S.-T.
Wang, X.-C.
Hou, D.-N.
Bao, C.
Yang, D. http://orcid.org/0000-0001-7827-7315
Song, Y.-L.
Funding for this research was provided by:
This work was supported by State's Key Project of Research and Development Plan (2017YFC1310602, 2017YFC1310600)
Foundation of Shanghai Municipal Commission of Health and Family Planning (201540078)
Article History
Received: 2 June 2018
Accepted: 30 July 2018
First Online: 21 August 2018
Compliance with ethical standards
:
: All 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 and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.