Kang, Han
Wang, Lingxi
Li, Xingyu
Gao, Chonglan
Xie, Yamei
Hu, Yu
Article History
Received: 22 July 2022
Accepted: 20 October 2022
First Online: 4 November 2022
Declarations
:
: This study was performed in accordance with the Declaration of Helsinki and was approved by the Medical Ethics Committee of Chengdu Women’s and Children’s Central Hospital and all pregnant women signed informed consent forms.
: Not applicable.
: The authors declare that they have no competing interests.