Chen, Jing
Liang, Jin-qian
Zhen, Yun-Fang
Chang, Lei
Zhou, Zhen-tao http://orcid.org/0000-0003-4133-5803
Shen, Xiong-jie http://orcid.org/0000-0003-4533-5632
Funding for this research was provided by:
Scientific research project of Hunan health and Family Planning Commission
Article History
Received: 20 July 2021
Revised: 6 October 2021
Accepted: 7 October 2021
First Online: 29 October 2021
Competing interests
: The authors declare no competing interests.
: The study was approved by the Ethics Committee of Hunan Provincial People’s Hospital.