Wu, Qizhen
Meng, Zhaoyan
Liu, Qing
Zhang, Lili
Mao, Baohong
Wang, Cheng
Zhou, Min
Zhang, Zhi
Yang, Dehua
Jin, Ruirui
Yi, Tongying
Funding for this research was provided by:
Natural Science Foundation of Gansu Province (18JR3RA030)
Gansu Provincial Health Industry Research Program (GSWSHL2021-018)
Article History
Received: 25 May 2022
Accepted: 7 August 2023
First Online: 22 August 2023
Declarations
:
: The authors declare no competing interests.
: This study followed ethical principles and was approved by the Ethics Committee of Gansu Provincial Maternity and Child-Care Hospital (REC 2018, GSFY18). All participants signed an informed consent form for clinical research. All procedures performed in the study were in accordance with the ethical standards of the Institutional and National Research Committee and the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Not applicable.