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Botha JL, Vinik AI, van Tonder S, Lund A, Waynik J, Jackson WP.Botha JL, et al.S Afr Med J. 1978 Mar 4;53(9):313-8.S Afr Med J. 1978.PMID: 653542Clinical Trial.No abstract available.
Botha JL, Vinik AI, Jackson WP.Botha JL, et al.S Afr Med J. 1977 Aug 13;52(8):301-2.S Afr Med J. 1977.PMID: 897932Clinical Trial.No abstract available.