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.
Mortimer CH, McNeilly AS, Fisher RA, Murray MA, Besser GM.Mortimer CH, et al.Br Med J. 1974 Dec 14;4(5945):617-21. doi: 10.1136/bmj.4.5945.617.Br Med J. 1974.PMID: 4613417Free PMC article.
Mortimer CH, Besser GM, McNeilly AS, Marshall JC, Harsoulis P, Tunbridge WM, Gomez-Pan A, Hall R.Mortimer CH, et al.Br Med J. 1973 Oct 13;4(5884):73-7. doi: 10.1136/bmj.4.5884.73.Br Med J. 1973.PMID: 4583182Free PMC article.