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van der Velde JL, Flokstra-de Blok BM, Vlieg-Boerstra BJ, Oude Elberink JN, Schouten JP, Dunngalvin A, Hourihane JO, Duiverman EJ, Dubois AE.van der Velde JL, et al. Among authors: dubois ae.Qual Life Res. 2009 Mar;18(2):245-51. doi: 10.1007/s11136-008-9434-2. Epub 2009 Jan 14.Qual Life Res. 2009.PMID: 19142745Free article.