Zhuang, Hai-Hui
Qu, Qiang
Long, Wen-Ming
Hu, Qin
Wu, Xiao-Li
Chen, Ying
Wan, Qing
Xu, Tian-Tian
Luo, Yue
Yuan, Hai-Yan
Lu, Qiong
Qu, Jian
Funding for this research was provided by:
Hubei Province Health and Family Planning Scientific Research Project (WJ2017Q006)
Scientific Research Project of Hunan Health Commission (202113010170 and 202213014496)
Project of Hunan Natural Science Foundation (2023JJ50446)
Degree & Postgraduate Education Reform Project of Central South University (2023JGB123)
BEIJING Medical and health foundation (YWJKJJHKYJJ-TYU139N)
Article History
Received: 21 February 2024
Accepted: 10 June 2024
First Online: 17 June 2024
Declarations
:
: The study was conducted according to the ethical standards of the Helsinki Declaration (1964). The Ethics Committees of the Second Xiangya Hospital of Central South University approved it (LYF-2020021) and other ethics committees at each study site. Because of the study’s retrospective and observational nature, it was exempted from the need for written informed consent. The Research Ethics Committee approved the study protocol and waived informed consent due to the retrospective nature of the study of each participating site.
: The authors declare no competing interests.