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.
Jansen W, Raat H, Zwanenburg EJ, Reuvers I, van Walsem R, Brug J.Jansen W, et al.BMC Public Health. 2008 Jul 25;8:257. doi: 10.1186/1471-2458-8-257.BMC Public Health. 2008.PMID: 18657280Free PMC article.Clinical Trial.
Kruizinga I, Jansen W, Carter AS, Raat H.Kruizinga I, et al. Among authors: jansen w.BMC Public Health. 2011 Jun 24;11:494. doi: 10.1186/1471-2458-11-494.BMC Public Health. 2011.PMID: 21702936Free PMC article.Clinical Trial.
Kruizinga I, Jansen W, de Haan CL, van der Ende J, Carter AS, Raat H.Kruizinga I, et al. Among authors: jansen w.PLoS One. 2012;7(6):e38762. doi: 10.1371/journal.pone.0038762. Epub 2012 Jun 8.PLoS One. 2012.PMID: 22715411Free PMC article.Clinical Trial.
Kruizinga I, Jansen W, de Haan CL, Raat H.Kruizinga I, et al. Among authors: jansen w.PLoS One. 2012;7(11):e49633. doi: 10.1371/journal.pone.0049633. Epub 2012 Nov 21.PLoS One. 2012.PMID: 23185388Free PMC article.