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van Beugen S, Ograczyk A, Ferwerda M, Smit JV, Zeeuwen-Franssen ME, Kroft EB, de Jong EM, Zalewska-Janowska A, Donders AR, van de Kerkhof PC, van Middendorp H, Evers AW.van Beugen S, et al.Acta Derm Venereol. 2015 Apr;95(4):444-50. doi: 10.2340/00015555-1977.Acta Derm Venereol. 2015.PMID: 25270666Free article.