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.
Slusky DA, Cwikel J, Quastel MR.Slusky DA, et al.Int J Public Health. 2017 May;62(4):463-469. doi: 10.1007/s00038-017-0941-1. Epub 2017 Jan 27.Int J Public Health. 2017.PMID: 28130563