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Kniest FM, Young E, Van Praag MC, Vos H, Kort HS, Koers WJ, De Maat-Bleeker F, Van Bronswijk JE.Kniest FM, et al. Among authors: koers wj.Clin Exp Allergy. 1991 Jan;21(1):39-47. doi: 10.1111/j.1365-2222.1991.tb00802.x.Clin Exp Allergy. 1991.PMID: 2021877Clinical Trial.
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Young E, Koers WJ, de Maat-Bleeker F, Martens BP.Young E, et al. Among authors: koers wj.Ned Tijdschr Geneeskd. 1989 Feb 11;133(6):312-3.Ned Tijdschr Geneeskd. 1989.PMID: 2927549Dutch.No abstract available.
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