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Magubane MM, Lembede BW, Erlwanger KH, Chivandi E, Donaldson J.Magubane MM, et al. Among authors: donaldson j.J S Afr Vet Assoc. 2013 May 17;84(1):E1-7. doi: 10.4102/jsava.v84i1.384.J S Afr Vet Assoc. 2013.PMID: 23718824Clinical Trial.