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Goossen GM, van Woensel JB, van Noesel MM, Zaaijer HL, van de Wetering MD.Goossen GM, et al. Among authors: zaaijer hl.Ned Tijdschr Geneeskd. 2007 Sep 29;151(39):2154-7.Ned Tijdschr Geneeskd. 2007.PMID: 17957993Dutch.
Zaaijer HL, Lelie PN, van der Poel CL.Zaaijer HL, et al.Ned Tijdschr Geneeskd. 1997 Aug 9;141(32):1571-2.Ned Tijdschr Geneeskd. 1997.PMID: 9543753Dutch.