An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Richardson JB, Chase JK.Richardson JB, et al.Int J Environ Res Public Health. 2021 Dec 16;18(24):13271. doi: 10.3390/ijerph182413271.Int J Environ Res Public Health. 2021.PMID: 34948880Free PMC article.