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.
Abonie US, Hettinga FJ.Abonie US, et al.Int J Environ Res Public Health. 2020 Dec 22;18(1):17. doi: 10.3390/ijerph18010017.Int J Environ Res Public Health. 2020.PMID: 33375123Free PMC article.Clinical Trial.