Zhou, Meijuan http://orcid.org/0000-0003-3498-2690
Guo, Junjun
Li, Shuxian
Li, Anna
Fang, Zhenya
Zhao, Man
Zhang, Meihua
Wang, Xietong
Funding for this research was provided by:
Medical and Health Science and Technology Development Program of Shandong Province (202105021033)
Article History
Received: 2 November 2022
Accepted: 26 April 2023
First Online: 25 May 2023
Declarations
:
: The research protocol was approved by the Ethics Committee of the Maternal and Child Health Care Hospital of Shandong Province (no. 2021–058). All the participants signed informed consent for scientific research.
: The authors declare no competing interests.