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van der Vlist GJ, Gerards LJ, Sybrandy R, Huysmans HA.van der Vlist GJ, et al. Among authors: gerards lj.Ned Tijdschr Geneeskd. 1977 Oct 8;121(41):1595-7.Ned Tijdschr Geneeskd. 1977.PMID: 904714Dutch.No abstract available.
Van der Steeg HJ, Gerards LJ, Willemse J.Van der Steeg HJ, et al. Among authors: gerards lj.Ned Tijdschr Geneeskd. 1977 Nov 19;121(47):1879-83.Ned Tijdschr Geneeskd. 1977.PMID: 917142Dutch.No abstract available.