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Erasmus RT, Soita DJ, Hassan MS, Blanco-Blanco E, Vergotine Z, Kegne AP, Matsha TE.Erasmus RT, et al. Among authors: hassan ms.S Afr Med J. 2012 Oct 8;102(11 Pt 1):841-4. doi: 10.7196/samj.5670.S Afr Med J. 2012.PMID: 23116739