Zhang, Junling
Li, Hezhou http://orcid.org/0000-0001-9888-6986
Feng, Demin
Wu, Juan
Wang, Zhaoyu
Feng, Fan
Funding for this research was provided by:
Medical Science and Technology project of Henan Province (LHGJ20210474, LHGJ20210474, LHGJ20210474, LHGJ20210474, LHGJ20210474, LHGJ20210474)
Article History
Received: 6 May 2023
Accepted: 30 July 2023
First Online: 7 August 2023
Declarations
:
: The authors declare no competing interests.
: This study was reviewed and approved by the Medical Ethics Committee of the Third Affiliated Hospital of Zhengzhou University (Approval number: 2022-098-01). All women provided informed consent before ultrasonic assessment. This study was performed in line with the principles of the Declaration of Helsinki.
: Not applicable.