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.
Janssen J, Verschuren O, Renger WJ, Ermers J, Ketelaar M, van Ee R.Janssen J, et al. Among authors: ketelaar m.Pediatr Phys Ther. 2017 Jan;29(1):95-99. doi: 10.1097/PEP.0000000000000326.Pediatr Phys Ther. 2017.PMID: 27984481
Verschuren O, Darrah J, Novak I, Ketelaar M, Wiart L.Verschuren O, et al. Among authors: ketelaar m.Phys Ther. 2014 Feb;94(2):297-305. doi: 10.2522/ptj.20130214. Epub 2013 Oct 3.Phys Ther. 2014.PMID: 24092902
Verschuren O, Ketelaar M, Takken T, Helders PJ, Gorter JW.Verschuren O, et al. Among authors: ketelaar m.Am J Phys Med Rehabil. 2008 May;87(5):404-17. doi: 10.1097/PHM.0b013e31815b2675.Am J Phys Med Rehabil. 2008.PMID: 17993987Review.