Wang, Tianping
Wang, Haijie
Wang, Yida
Liu, Xuefen
Ling, Lei
Zhang, Guofu
Yang, Guang
Zhang, He https://orcid.org/0000-0003-3782-1411
Article History
Received: 12 August 2021
Accepted: 28 December 2021
First Online: 12 January 2022
Declarations
:
: Our institutional review board approved the study, and the requirement for the informed consent of all participants was waived. In this article, institutional review board was review board of Obstetrics and Gynecology Hospital, Fudan University.
: Not applicable.
: The authors declare that they have no competing interests.