Guo, Jincai
Xie, Hui
Liang, Mining
Wu, Hao
Funding for this research was provided by:
Natural Science Foundation of Hunan Province (No.2019JJ80054 and No.2019JJ80055)
Female Center for Scientific and Medical Colleges, King Saud University (No. B2019133)
Research Project Funding of the Changsha Municipal Health and Family Planning Commission (No. 201809)
Article History
Received: 11 March 2020
Accepted: 16 April 2020
First Online: 7 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required.
Free to read: This content has been made available to all.