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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
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.
Cavazos-Rehg P, Krauss M, Grucza R, Bierut L.Cavazos-Rehg P, et al.J Med Internet Res. 2014 Jun 27;16(6):e157. doi: 10.2196/jmir.3247.J Med Internet Res. 2014.PMID: 24974893Free PMC article.