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Retief AE, Kotze MJ, Oosthuizen CJ.Retief AE, et al. Among authors: kotze mj.S Afr Med J. 1989 Aug 5;76(3):121.S Afr Med J. 1989.PMID: 2762943No abstract available.
Kotze MJ, Langenhoven E, Warnich L, du Plessis L, Marx MP, Oosthuizen CJ, Retief AE.Kotze MJ, et al.S Afr Med J. 1989 Oct 21;76(8):399-401.S Afr Med J. 1989.PMID: 2799589