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.
Mant A, Duncan-Jones P, Saltman D, Bridges-Webb C, Kehoe L, Lansbury G, Chancellor AH.Mant A, et al.Br Med J (Clin Res Ed). 1988 Jan 23;296(6617):251-4. doi: 10.1136/bmj.296.6617.251.Br Med J (Clin Res Ed). 1988.PMID: 2893650Free PMC article.
Mant A, Eyland EA, Hewitt H, Fox M, Goode E, LeCount A, Pond D, Saunders NA.Mant A, et al.Age Ageing. 1992 Jul;21(4):262-8. doi: 10.1093/ageing/21.4.262.Age Ageing. 1992.PMID: 1514455