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.
Goldacre MJ, Roberts SE, Griffith M.Goldacre MJ, et al.Eur J Public Health. 2004 Dec;14(4):338-42. doi: 10.1093/eurpub/14.4.338.Eur J Public Health. 2004.PMID: 15542866