Chu, Chunfang
Li, Lin
Li, Shenghui
Zhou, Qi
Zheng, Ping
Zhang, Yu-Di
Duan, Ai-hong
Lu, Dan
Wu, Yu-Mei
Funding for this research was provided by:
Beijing Obstetrics and Gynecology Hospital, Capital Medical University (FCYY202011)
Beijing Hospitals Authority Youth Programme (QML20201401)
Article History
Received: 10 January 2022
Accepted: 18 March 2022
First Online: 31 March 2022
Declarations
:
: This study was approved by the Ethics Committee of Beijing Obstetrics and Gynecology Hospital (2018-KY-027-01 and 2021-KY-032-01) and conducted in accordance with the 1964 Declaration of Helsinki and its later amendments.
: Written informed consent was obtained from all patients and their parents (if any).
: On behalf of all the authors, the corresponding author states that there are no conflicts of interest.