Journal articles
2013
- . (2013). Rhizosphere acid and alkaline phosphatase activity as a marker of P nutrition in nodulated Cyclopia and Aspalathus species in the Cape fynbos of South Africa. South African Journal Of Botany, 89. http://doi.org/10.1016/j.sajb.2013.06.023 (Original work published 11/2013AD)
- . (2013). Safety of Prunus africana and Warburgia ugandensis in asthma treatment. South African Journal Of Botany, 88. http://doi.org/10.1016/j.sajb.2013.07.007 (Original work published 9/2013AD)
- . (2013). Scientific investigation of the anti-HIV properties of a South African medicinal plant. South African Journal Of Botany, 86, 177. http://doi.org/10.1016/j.sajb.2013.02.143 (Original work published 5/2013AD)
2005
- Riding the wave: South Africa's contribution to ethnopharmacological research over the last 25 years. (2005). Riding the wave: South Africa's contribution to ethnopharmacological research over the last 25 years. Journal Of Ethnopharmacology, 100(1-2), 127 - 130. http://doi.org/10.1016/j.jep.2005.05.028 (Original work published 8/2005AD)
2006
- . (2006). Risk and safety assessment on the consumption of Licorice root (Glycyrrhiza sp.), its extract and powder as a food ingredient, with emphasis on the pharmacology and toxicology of glycyrrhizin. Regulatory Toxicology And Pharmacology, 46(3). http://doi.org/10.1016/j.yrtph.2006.06.002 (Original work published 12/2006AD)
2002
- . (2002). Role of hyperforin in the antidepressant-like activity of Hypericum perforatum extract. European Neuropsychopharmacology, 12. http://doi.org/10.1016/S0924-977X(02)80184-5 (Original work published 10/2002AD)
- . (2002). Screening of Catharanthus roseus secondary metabolites by high-performance liquid chromatography. Journal Of Chromatography A, 955(1). http://doi.org/10.1016/S0021-9673(02)00204-2 (Original work published 4/2002AD)
2011
- Rooibos (Aspalathus linearis) beyond the farm gate: From herbal tea to potential phytopharmaceutical. (2011). Rooibos (Aspalathus linearis) beyond the farm gate: From herbal tea to potential phytopharmaceutical. South African Journal Of Botany, 77(4). http://doi.org/10.1016/j.sajb.2011.07.004 (Original work published 10/2011AD)
- . (2011). Screening for adulticidal bioactivity of South African plants against Anopheles arabiensis. Malaria Journal, 10(1), 233. http://doi.org/10.1186/1475-2875-10-233 (Original work published 2011)
2008
- . (2008). Sceletium—A review update. Journal Of Ethnopharmacology, 119(3), 653 - 663. http://doi.org/10.1016/j.jep.2008.07.043 (Original work published 10/2008AD)
- . (2008). Scientific investigations in African herbal remedies is an imperative and not an indulgence. Human & Experimental Toxicology, 27(11), 791 - 792. http://doi.org/10.1177/0960327108099524 (Original work published 11/2008AD)
- . (2008). Sclerocarya birrea [(A. Rich.) Hochst.] [Anacardiaceae] stem-bark ethanolic extract (SBE) modulates blood glucose, glomerular filtration rate (GFR) and mean arterial blood pressure (MAP) of STZ-induced diabetic rats. Phytomedicine, 15(9). http://doi.org/10.1016/j.phymed.2008.02.004 (Original work published 9/2008AD)
- . (2008). Screening of chemical composition, antimicrobial and antioxidant activities of Artemisia essential oils. Phytochemistry, 69(8). http://doi.org/10.1016/j.phytochem.2008.02.014 (Original work published 5/2008AD)
2009
- . (2009). Sclerocarya birrea (a. rich) hochst. ['marula'] (anacardiaceae): a review of its phytochemistry, pharmacology and toxicology and its ethnomedicinal uses. Phytotherapy Research, 24(5), 633-639. http://doi.org/10.1002/ptr.3080 (Original work published 2010)
1988
- . (1988). Screening for cytotoxic activity of plants used in traditional medicine. Journal Of Ethnopharmacology, 23(2-3), 273 - 284. http://doi.org/10.1016/0378-8741(88)90006-2 (Original work published 7/1988AD)