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.
Chang M, Cohen-Mansfield J, Ferrucci L, Leveille S, Volpato S, de Rekeneire N, Guralnik JM.Chang M, et al.J Am Geriatr Soc. 2004 Dec;52(12):2094-8. doi: 10.1111/j.1532-5415.2004.52570.x.J Am Geriatr Soc. 2004.PMID: 15571549