Li, Wei
Cao, Ting
Luo, Chunyi
Cai, Jialun
Zhou, Xiangping
Xiao, Xinhua
Liu, Shuangquan
Funding for this research was provided by:
National Natural Science Foundation of China (81201331)
Major special projects of Hunan Provincial Health and Family Planning Commission (A2017011)
Article History
Received: 4 February 2020
Revised: 31 March 2020
Accepted: 5 April 2020
First Online: 24 May 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.