Anani,, Hudson,, Souza,, Akpagana,, Tower,, Arnason,, & Gbeassor,. (2000). Investigation of Medicinal Plants of Togo for Antiviral and Antimicrobial Activities. Pharmaceutical Biology, 38(1). http://doi.org/10.1076/1388-0209(200001)3811-BFT040 (Original work published 01/2000AD)

De Kimpe,, Van Puyvelde,, He,, Van Kolen,, Bruinzeel,, Cik,, & Pullan,. (2013). Investigation of signalling cascades induced by neurotrophic synaptolepis factor K7 reveals a critical role for novel PKCε. European Journal Of Pharmacology, 701(1-3). http://doi.org/10.1016/j.ejphar.2013.01.004 (Original work published 02/2013AD)

Arnason,, Kanfer,, Nair,, Agbonon,, Dairam,, & Foster,. (2007). Investigation of the antioxidant activity of African potato (Hypoxis hemerocallidea). Journal Of Agricultural And Food Chemistry, 55(5), 1707 -1711. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/17295502 (Original work published 2007)

Shanmugavasan,, & Ramachandran,. (2011). Investigation of the extraction process and phytochemical composition of preparations of Dodonaea viscosa (L.) Jacq. Journal Of Ethnopharmacology, 137(3). http://doi.org/10.1016/j.jep.2011.07.040 (Original work published 10/2011AD)

Michaelis, M., Doerr, H. W., & Cinatl, J. (2011). Investigation of the influence of EPs® 7630, a herbal drug preparation from Pelargonium sidoides, on replication of a broad panel of respiratory viruses. Phytomedicine, 18(5). http://doi.org/10.1016/j.phymed.2010.09.008 (Original work published 3/2011AD)

Abdelshafeek, K., Elgattar, A., Zarkoon, A., Alwahash, M., & Shahat, A. (2010). Investigation of the volatile oils, lipid constituents and biological activity of Ballota andreuzziana, Teucrium zanonii and Verbena tenuisecta in Libya. Asian Pacific Journal Of Tropical Medicine, 3, 594-601. (Original work published 8AD)

Süntar,, Akkol,, Yılmazer,, Baykal,, Kırmızıbekmez,, Alper,, & Yeşilada,. (2010). Investigations on the in vivo wound healing potential of Hypericum perforatum L. Journal Of Ethnopharmacology, 127(2). http://doi.org/10.1016/j.jep.2009.10.011 (Original work published 2/2010AD)

Mulholland,, Randrianarivelojosia,, & Langlois,. (2006). Investigations of the Malagasy species Tachiadenus longiflorus Grisebach (Gentianaceae): Linking chemical finding and traditional usage. Journal Of Ethnopharmacology, 105(3). (Original work published 5/2006AD)

Asres,, Bucar,, Edelsbrunner,, Kartnig,, H�ger,, & Thiel,. (2001). Investigations on antimycobacterial activity of some Ethiopian medicinal plants. Phytotherapy Research, 15(4). http://doi.org/10.1002/ptr.724 (Original work published 06/2001AD)

Loew,. (2001). Investigations on the pharmacokinetic properties of Harpagophytum extracts and their effects on eicosanoid biosynthesis in vitro and ex vivo. Clinical Pharmacology & Therapeutics, 69(5). http://doi.org/10.1067/mcp.2001.115445 (Original work published 05/2001AD)

Joubert, E., De Beer, D., Malherbe, C., Willenburg, E., Bonnet, S., & Westhuizen, J. (2014). Iriflophenone-3-C-glucoside from Cyclopia genistoides: Isolation and quantitative comparison of antioxidant capacity with mangiferin and isomangiferin using on-line HPLC antioxidant assays. Journal Of Chromatography B, 951-952. http://doi.org/10.1016/j.jchromb.2014.01.038 (Original work published 03/2014AD)

Farrand,. (1984). Is a combined Western and traditional health service for black patients desirable?. South African Medical Journal, 66(17), 779-780. Retrieved from http://archive.samj.org.za/1984%20VOL%20LXV%20Jul-Dec/Articles/11%20November/3.12%20IS%20A%20COMBINED%20WESTERN%20AND%20TRADITIONAL%20HEALTH%20SERVICE%20FOR%20BLACK%20PATIENTS%20DESIRABLE,%20Dorothy%20F.pdf (Original work published 1984)

Badria, F. (1994). Is man helpless against cancer? An environmental approach: antimutagenic agents from Egyptian food and medicinal preparations. Cancer Letters, 84(1), 1 - 5. http://doi.org/10.1016/0304-3835(94)90351-4 (Original work published 8/1994AD)

Jäger, A. (2005). Is traditional medicine better off 25 years later?. Journal Of Ethnopharmacology, 100(1-2), 3 - 4. http://doi.org/10.1016/j.jep.2005.05.034 (Original work published 8/2005AD)

Veale,, & Varga,. (1997). Isihlambezo: Utilization patterns and potential health effects of pregnancy-related traditional herbal medicine. Social Science & Medicine, 44(7). http://doi.org/10.1016/S0277-9536(96)00104-9 (Original work published 4/1997AD)