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Hulzebos HJ, Snieder H, van der Et J, Helders PJ, Takken T.Hulzebos HJ, et al.Physiother Theory Pract. 2011 Apr;27(3):231-7. doi: 10.3109/09593985.2010.483266. Epub 2010 Jul 22.Physiother Theory Pract. 2011.PMID: 20649499