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.
Thornton LE, Jeffery RW, Crawford DA.Thornton LE, et al. Among authors: crawford da.Public Health Nutr. 2013 Dec;16(12):2105-13. doi: 10.1017/S1368980012005083. Epub 2012 Nov 27.Public Health Nutr. 2013.PMID: 23182344Free PMC article.
Ball K, Crawford D, Owen N.Ball K, et al.Aust N Z J Public Health. 2000 Jun;24(3):331-3. doi: 10.1111/j.1467-842x.2000.tb01579.x.Aust N Z J Public Health. 2000.PMID: 10937415Free article.
Timperio A, Cameron-Smith D, Burns C, Crawford D.Timperio A, et al.Public Health Nutr. 2000 Dec;3(4):417-24. doi: 10.1017/s1368980000000483.Public Health Nutr. 2000.PMID: 11135796
Worsley A, Blasche R, Ball K, Crawford D.Worsley A, et al.Public Health Nutr. 2004 Aug;7(5):649-63. doi: 10.1079/PHN2003577.Public Health Nutr. 2004.PMID: 15251056