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.
Bernaards CM, Twisk JW, Van Mechelen W, Snel J, Kemper HC.Bernaards CM, et al. Among authors: snel j.Med Sci Sports Exerc. 2003 May;35(5):793-800. doi: 10.1249/01.MSS.0000064955.31005.E0.Med Sci Sports Exerc. 2003.PMID: 12750589
Van Mechelen W, Twisk JW, Van Lenthe FJ, Post GB, Snel J, Kemper HC.Van Mechelen W, et al. Among authors: snel j.J Sports Sci. 1998 Jan;16 Suppl:S17-23. doi: 10.1080/026404198366641.J Sports Sci. 1998.PMID: 22587714
Bernaards CM, Twisk JW, Snel J, van Mechelen W, Kemper HC.Bernaards CM, et al. Among authors: snel j.J Clin Epidemiol. 2005 Nov;58(11):1165-71. doi: 10.1016/j.jclinepi.2005.02.019.J Clin Epidemiol. 2005.PMID: 16223660