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Groenewoud GC, de Jong NW, van Oorschot-van Nes AJ, Vermeulen AM, van Toorenenbergen AW, Mulder PG, Burdorf A, de Groot H, van Wijk RG.Groenewoud GC, et al. Among authors: mulder pg.Clin Exp Allergy. 2002 Mar;32(3):434-40. doi: 10.1046/j.1365-2222.2002.01307.x.Clin Exp Allergy. 2002.PMID: 11940075