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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
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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.
Straßmann C, Krämer NC, Buschmeier H, Kopp S.Straßmann C, et al.J Med Internet Res. 2020 Apr 23;22(4):e13726. doi: 10.2196/13726.J Med Internet Res. 2020.PMID: 32324146Free PMC article.