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Mantel HT, Buis CI, van der Heide JJ, van der Berg AP, Verkade HJ, Haagsma EB, Peeters PM, de Jong KP, Slooff MJ, Porte RJ.Mantel HT, et al.Ned Tijdschr Geneeskd. 2006 Oct 14;150(41):2260-5.Ned Tijdschr Geneeskd. 2006.PMID: 17076363Dutch.