Qin, Lin
Zhang, Lina
Article History
Received: 16 April 2024
Accepted: 25 June 2024
First Online: 28 June 2024
Declarations
:
: This study was approved by the ethics committees of Senior Department of Obstetrics & Gynecology of PLA General Hospital having approval no 2024KY007-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 competing interests.