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Kamphuis DJ, Martina IS, Keli SO, Balentien EG, Top C.Kamphuis DJ, et al.Ned Tijdschr Geneeskd. 1998 Jan 10;142(2):89-92.Ned Tijdschr Geneeskd. 1998.PMID: 9557000Dutch.
Kamphuis DJ, Carpentier PJ, van der Ploeg RJ, le Coultre R.Kamphuis DJ, et al.Ned Tijdschr Geneeskd. 1987 May 23;131(21):909-13.Ned Tijdschr Geneeskd. 1987.PMID: 3587432Dutch.No abstract available.