Wang, Xuke
Han, Jing
Song, Yun
Article History
Received: 22 December 2024
Accepted: 19 May 2025
First Online: 5 June 2025
Declarations
:
: Not Applicable.
: The authors declare no competing interests.
: This study was approved by The Ethics Committee of Pingliang City Maternal and Child Health Hospital.Written informed consent was obtained from all individual participants included in the study. All procedures performed in studies involving human participants were in accordance with the standards upheld with those of the 1964 Helsinki Declaration and its later amendments for ethical research involving human subjects.
: Informed consent was obtained from every human participant in the study and the patients participating in the study all agree to publish the research results.
: Not Applicable.