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.
Barker-Collo S, Feigin VL, Dudley M.Barker-Collo S, et al. Among authors: feigin vl.N Z Med J. 2007 Oct 26;120(1264):U2780.N Z Med J. 2007.PMID: 17972987Review.