Qin, Lin
Article History
Received: 19 November 2023
Accepted: 28 March 2024
First Online: 31 March 2024
Declarations
:
: This study was approved by the ethics committees of Senior Department of Obstetrics & Gynecology of PLA General Hospital having approval no. 2023KY017-KS001 and study was conducted in accordance with the Declaration of Helsinki. This study informed consent was obtained from all subjects and/or their legal guardian(s).
: Not applicable.
: The authors declare no conflict of interest, financial or otherwise.