Xia, Min
Zheng, Jie
Article History
Received: 11 October 2020
Accepted: 5 May 2021
First Online: 11 May 2021
Declarations
:
: The research was performed in accordance with the Declaration of Helsinki, and relevant guidelines and regulations. All study methods were also approved by the Institutional Review Board and Ethics Committee of the Women and Children′ Hospital of Hubei Province [2016]IEC[BL003]. The written informed consent to participate in the study was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.