Affiliation: | 1. Department of Pharmacy and Pharmacology, University of the Witwatersrand, Faculty of Health Sciences, 7 York Road, Parktown 2193, South Africa;2. Medicinal and Aromatic Plant and Drug Research Center (TBAM), Anadolu University. 26470-Eskisehir, Turkey;3. Department of Botany, Rand Afrikaans University, PO Box 524, Auckland Park 2006, Johannesburg, South Africa |