Zhou, Yuxi
Ji, Hui
Zhang, Mianqiu
Zhang, Juanjuan
Li, Xin
Zhang, Junqiang
Ling, Xiufeng
Chen, Li
Zhao, Chun
Funding for this research was provided by:
National Natural Science Foundation of China (81871210, 81971386)
Article History
Received: 7 December 2022
Accepted: 31 October 2023
First Online: 18 January 2024
Declarations
:
: The authors declare no competing interests.
: This study was performed in compliance with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Women’s Hospital of Nanjing Medical University (NJFY-2020-KY-070) and the Ethics Committee of Changzhou Maternal and Child Health Care Hospital (2020 No.75). All methods were carried out following the relevant guidelines and regulations. The need for written informed consent was exempted by the ethics committee of Women’s Hospital of Nanjing Medical University and Changzhou Maternal and Child Health Care Hospital due to the study’s retrospective design.
: Not applicable.