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.
Brug J, te Velde SJ, Chinapaw MJ, Bere E, de Bourdeaudhuij I, Moore H, Maes L, Jensen J, Manios Y, Lien N, Klepp KI, Lobstein T, Martens M, Salmon J, Singh AS.Brug J, et al. Among authors: singh as.BMC Public Health. 2010 May 25;10:276. doi: 10.1186/1471-2458-10-276.BMC Public Health. 2010.PMID: 20500859Free PMC article.
van der Horst K, Kremers S, Ferreira I, Singh A, Oenema A, Brug J.van der Horst K, et al.Health Educ Res. 2007 Apr;22(2):295-304. doi: 10.1093/her/cyl080. Epub 2006 Aug 14.Health Educ Res. 2007.PMID: 16908496
Singh AS, Chin A Paw MJ, Kremers SP, Visscher TL, Brug J, van Mechelen W.Singh AS, et al.BMC Public Health. 2006 Dec 16;6:304. doi: 10.1186/1471-2458-6-304.BMC Public Health. 2006.PMID: 17173701Free PMC article.