Li, Xuening
Xiao, Zhe
Li, Chenyang
Chen, Qi
Jia, Lihong
Article History
Received: 24 February 2023
Accepted: 21 August 2023
First Online: 28 August 2023
Declarations
:
: This study was approved by the Ethics Committee of the Fourth Affiliated Hospital of China Medical University (reference number: EC-2019-KS-027). An informed consent was obtained from all pregnant women who participated. All procedures were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare no competing interests.