Gao, Mengge
Liu, Xiaohua
Du, Mengxuan
Gu, Heng
Xu, Hang
Zhong, Xingming
Article History
Received: 18 December 2022
Accepted: 9 May 2023
First Online: 24 May 2023
Declarations
:
: The studies involving human participants were reviewed and approved by the Ethics Committee of Guangdong Provincial Fertility Hospital. All methods were performed according to the Declaration of Helsinki. Anonymized and deidentified information for participants was used for analysis, so the requirement for informed consent permission was waived by the Ethics Committee of Guangdong Provincial Fertility Hospital.
: Not applicable.
: The authors declare no competing interests.