Funding for this research was provided by:
Science and Technology Project of Tianjin Health Commission (ZC20023)
Received: 5 February 2022
Accepted: 25 November 2022
First Online: 1 December 2022
: This study was performed in accordance with the Declaration of Helsinki and approved by the Tianjin Central Hospital of Gynecology Obstetrics (approval number, 2020KY048). Written informed consent to participate in this study was provided by the participants’ legal guardian/next of kin.
: Not applicable.
: The authors declare that they have no conflict of interest.