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du Toit DF, Warren B, McCormich M, Laker L.du Toit DF, et al. Among authors: laker l.S Afr Med J. 1985 Jun 1;67(22):895-7.S Afr Med J. 1985.PMID: 2860725
du Toit DF, Retief A, Laker L, Warren B, van Zyl JA.du Toit DF, et al. Among authors: laker l.S Afr Med J. 1985 Jan 12;67(2):65-6.S Afr Med J. 1985.PMID: 3966192
Du Toit DF, Sunshine M, Knott-Craig C, Laker L.Du Toit DF, et al. Among authors: laker l.S Afr Med J. 1985 Sep 28;68(7):491-2.S Afr Med J. 1985.PMID: 4049165
du Toit DF, Laker L.du Toit DF, et al. Among authors: laker l.S Afr Med J. 1984 Aug 4;66(5):162.S Afr Med J. 1984.PMID: 6235603Afrikaans.No abstract available.