Funding for this research was provided by:
The 2021 Guangdong Province Youth Innovation Talent Program for Ordinary Universities (2021KQNCX010)
Pingshan District Health System Research Project (202168)
Article History
Received: 17 August 2023
Accepted: 17 December 2023
First Online: 16 January 2024
Declarations
:
: This study was approved by the Medical Ethics Committee of Hunan Provincial Maternal and Child Health Care Hospital (Approve number: 202134) and was in line with the relevant principles of medical ethics.
: Pregnant women and their families had informed consent and signed the informed consent.
: The authors indicate that they have no conflict of interest.