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van de Poll-Franse LV, Sadetsky N, Kwan L, Litwin MS.van de Poll-Franse LV, et al. Among authors: kwan l.Qual Life Res. 2008 Aug;17(6):845-55. doi: 10.1007/s11136-008-9356-z. Epub 2008 May 28.Qual Life Res. 2008.PMID: 18506598Free PMC article.