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van den Beuken-van Everdingen MHJ, de Rijke JM, Kessels AG, Schouten HC, van Kleef M, Patijn J.van den Beuken-van Everdingen MHJ, et al. Among authors: schouten hc.Pain. 2007 Dec 5;132(3):312-320. doi: 10.1016/j.pain.2007.08.022. Epub 2007 Oct 3.Pain. 2007.PMID: 17916403