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Cominos DC, van der Walt A, van Rooyen AJ.Cominos DC, et al. Among authors: van rooyen aj.S Afr Med J. 1976 Feb 21;50(8):251-2.S Afr Med J. 1976.PMID: 3858
Kalk WJ, Cominos DC, van der Walt A, van Rooyen AJ.Kalk WJ, et al. Among authors: van rooyen aj.S Afr Med J. 1977 Sep 10;52(12):485-6.S Afr Med J. 1977.PMID: 905911
Gétaz EP, van Rooyen AJ.Gétaz EP, et al. Among authors: van rooyen aj.S Afr Med J. 1977 Jan 1;51(1):3.S Afr Med J. 1977.PMID: 556865No abstract available.