Lv, Hongyan
Liu, Fang
Wang, Qiuli
Dong, Zhiyong
Zhang, Huiming
Ren, Pengshun
Li, Liangxiang
Article History
Received: 12 June 2023
Accepted: 21 February 2024
First Online: 13 March 2024
Declarations
:
: This study was conducted in accordance with the Declaration of Helsinki, and was approved by the Medical Ethics Committee of Handan Maternal and Child Health Care Hospital of Hebei Province. Written informed consent to participate in this study was provided by the participants’ legal guardian/next of kin.
: Not applicable.
: The authors declare no competing interests.