Jiang, Yan
Yuan, Jing-Chuan
Song, Ge
Zhang, Xu-Hui
Miao, Sui-Bing
Wu, Xiao-Hua
Funding for this research was provided by:
Key laboratory of Maternal and Fetal medicine of Hebei Province
Article History
Received: 17 April 2022
Accepted: 11 October 2022
First Online: 19 October 2022
Declarations
:
: The Fourth Hospital of Shijiazhuang Ethics Committee approved this study (approval no. 20200004). The procedures used in this study adhered to the tenets of the Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: There are no competing interests that could be perceived as prejudicing the impartiality of the research reported.