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.
van Well GT, Paes BF, Terwee CB, Springer P, Roord JJ, Donald PR, van Furth AM, Schoeman JF.van Well GT, et al. Among authors: terwee cb.Pediatrics. 2009;123(1):e1-8. doi: 10.1542/peds.2008-1353.Pediatrics. 2009.PMID: 19367678
Schellingerhout JM, Heymans MW, Verhagen AP, de Vet HC, Koes BW, Terwee CB.Schellingerhout JM, et al. Among authors: terwee cb.BMC Med Res Methodol. 2011 Jun 6;11:87. doi: 10.1186/1471-2288-11-87.BMC Med Res Methodol. 2011.PMID: 21645355Free PMC article.Review.