Funding for this research was provided by:
Popular Science Education on Children's Health Care Knowledge (2017KZ0042)
Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan Province, China
Article History
Received: 7 February 2023
Accepted: 7 April 2023
First Online: 18 April 2023
Declarations
:
: Since the public can obtain all NHANES III data for free online (ExternalRef removed), the study was not subject to review by the institutional review board.
: Not applicable.
: The authors declare that they have no competing interests.