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Abbad FC, Ploos van Amstel SL, de Jong MC, van der Heijden AJ, Boeschoten EW.Abbad FC, et al. Among authors: boeschoten ew.Ned Tijdschr Geneeskd. 1984 Apr 21;128(16):761-4.Ned Tijdschr Geneeskd. 1984.PMID: 6717650Dutch.No abstract available.