Funding for this research was provided by:
Zunyi City Joint Fund Grant Project (No.Zunshi Kehe HZ Zi (2020)110)
Guizhou Provincial Health Commission Science and Technology Fund Project (gzwkj2022-138)
Article History
Received: 5 January 2024
Accepted: 2 February 2024
First Online: 15 May 2024
Declarations
:
: This research was reviewed and approved by the institutional review board of the Third Affiliated Hospital of Zunyi Medical University, with the protocol number ethical review (2022)-311. Written informed consent was obtained from all parents and/or legal guardian of enrolled children. All the methods were carried out in accordance with ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.
: Not applicable.
: The authors declare that they have no competing interests.