Liu, Yuanyuan http://orcid.org/0000-0001-6969-0810
Ye, Yaqiong http://orcid.org/0000-0002-0418-8966
Cheng, Xiaodong http://orcid.org/0000-0002-6073-7261
Lu, Weiguo http://orcid.org/0000-0002-8570-7317
Xie, Xing http://orcid.org/0000-0002-1636-4816
Wang, Xinyu http://orcid.org/0000-0002-3173-6390
Li, Xiao http://orcid.org/0000-0002-8666-2974
Article History
Received: 16 November 2021
Accepted: 16 December 2022
First Online: 2 January 2023
Declarations
:
: This study was reviewed and approved by the Ethical Committee of Women's hospital, Zhejiang University School of Medicine (20190074). Informed consent was waived because of the retrospective character of the study. All the study procedures were carried out in accordance with the principles of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.