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.
Cariem AK, Lemmer ER, Adams MG, Winter TA, O'Keefe SJ.Cariem AK, et al.Postgrad Med J. 1994 Nov;70(829):825-7. doi: 10.1136/pgmj.70.829.825.Postgrad Med J. 1994.PMID: 7824419Free PMC article.
Winter TA, Marks T, Callanan M, O'Keefe SJ, Bridger S.Winter TA, et al.Nutrition. 2001 Mar;17(3):230-5. doi: 10.1016/s0899-9007(00)00575-x.Nutrition. 2001.PMID: 11312065
O'Keefe SJ, Winter TA, Newton KA, Ogden JM, Young GO, Price SK.O'Keefe SJ, et al.Am J Gastroenterol. 1988 Sep;83(9):995-1001.Am J Gastroenterol. 1988.PMID: 3414653