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.
Miller MD, Crotty M, Giles LC, Bannerman E, Whitehead C, Cobiac L, Daniels LA, Andrews G.Miller MD, et al. Among authors: crotty m.J Am Geriatr Soc. 2002 Jul;50(7):1272-7. doi: 10.1046/j.1532-5415.2002.50316.x.J Am Geriatr Soc. 2002.PMID: 12133024
Giles LC, Hawthorne G, Crotty M.Giles LC, et al. Among authors: crotty m.Health Qual Life Outcomes. 2009 Jul 26;7:71. doi: 10.1186/1477-7525-7-71.Health Qual Life Outcomes. 2009.PMID: 19630996Free PMC article.