Prof Mrs. Rita Dickson
Department
Office-location
Research-areas
Rita Akosua Dickson (BPharm-Kumasi, PhD-London, GCAP-London, MPSGH) is an Associate Professor in the Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences of the College of Health Sciences, KNUST, Kumasi.
She obtained her Bachelor of Pharmacy (BPharm) and Master of Pharmacy (MPharm) degrees from KNUST and holds a PhD and a Graduate Certificate in Academic Practice (GCAP) from Kings College, London.
She is a Commonwealth and Norvatis Academic Fellow. Besides teaching and research, she also serves the university, the nation and the international community in various capacities. She is a member of various International Scientific Natural Product Groups including Society of Medicinal Plant Research (GA), International Society of Ethnopharmacology (ISEP), Phytochemical Society of Europe (PSE) and American Society of Pharmacognosists.
She has a number of peered reviewed publications in reputable international journals and is currently a reviewer for a number of refereed journals. She is the Editor-in-Chief for the International Journal of Ethnomedicine and Pharmacognosy (IJEP) and also serves as a reviewer for South Africa’s National Research Foundation. She has attended and presented at various scientific conferences worldwide.
Areas of Expertise
- Phytochemistry
- Bioactive natural products
- Ethnopharmacology
- Standardisation of Herbal Products
Research Interests
- Medicinal plants with anti-infective properties and wound healing effects
- Pharmacovigilance of herbal medicines
- Plant products with antioxidant and anti-inflammatory effects
- Medicinal plants with antipediculosis and anthelmintic potential
- Antimalarial and anti-diabetic agents from plants
- Phytopharmaceutical analysis and quality control of herbal drugs
Email: ritadickson2000@yahoo.co.uk, radickson.pharm@knust.edu.gh
Publications
- Gustav Komlaga, Christian Agyare, Rita Akosua Dickson, Merlin Lincoln Kwao Mensah, Kofi Annan, Philippe M. Loiseau, Pierre Champy (2015). Medicinal plants and finished marketed herbal products used in the treatment of malaria in the Ashanti region, Ghana. Journal of ethnopharmacology 172, 333-346.
- KP Thomford, MLK Mensah, RA Dickson, BS Sarfo, DA Edoh, K. Annan (2015).
A randomized double-blind study evaluating the safety and effectiveness of a Ghanaian polyherbal product for the management of superficial mycoses. Journal of Herbal Medicine, 5, 140-146.
- K.P Thomford, M.L.K Mensah, R.A Dickson, M. Sakyiamah, D.A Edoh, K. Annan (2015). Determination of the Rutin, Quercetin and Kaempferol Contents in a Ghanaian Polyherbal Formulation (EAF-2011) and Its Raw Materials Using a Simultaneous RP-HPLC Method. International Journal of Pharmaceutical Sciences and Drug Research, 7 (1): 01-04.
- BK Turkson, PO Kofi, E Achaab, Y Woyome, MLK Mensah, K Sarpong, Theophilus Fleischer, Isaac K. Amponsah, Edmund Ekuadzi, Rita Dickson, Abraham Y. Mensah, Kofi Annan (2015). Clinical Evaluation of the Effectiveness and Safety of Mist Amen Fevermix, a Ghanaian Bi-Herbal Product, Used in the Management of Uncomplicated Malaria. Journal of Natural Sciences Research 5 (10), 28-33.
- E. Ekuadzi, R.A. Dickson, T.C. Fleischer, I.K. Amponsah, D. Pistorius and L. Oberer (2014). Chemical constituents from Gouania longipetala and Glyhaea brevis. Natural Product Research, 1-4.
- Rita Akosua Dickson, Isaac Kingsley Amponsah, Kofi Annan and Theophilus Christian Fleischer (2014). Nutritive potential of a polyherbal preparation from some selected Ghanaian herbs. Journal of Natural Product Plant Resource, 4 (3): 77-81
- E.A. Mireku, A.Y. Mensah, M.L.K. Mensah, E. Ekuadzi and R.A. Dickson (2014). Antimicrobial and Antioxidant Activities of the Stem Bark of Cussonia bancoensis. Journal of Medical and Biomedical Sciences (2014) 3(2): 7-13.
- E Ekuadzi, R Dickson, T Fleischer, D Pistorius, L Oberer (2014). Ghanaian Medicinal Plants-A Source of Wound Healing Agents. Basic & Clinical Pharmacology & Toxicology 115, 121-122.
- GA Koffuor, R Dickson, SY Gbedema, E Ekuadzi, G Dapaah, LF Otoo (2014).
The Immunostimulatory and Antimicrobial Property of Two Herbal Decoctions Used in the Management of HIV/AIDS in Ghana. African Journal of Traditional, Complementary, and Alternative Medicines 11 (3):166-172.
- Edmund Ekuadzi, Rita Dickson, Theophilus Fleischer, Kofi Annan, Dominik Pistorius, Lukas Oberer and Simon Gibbons (2013). Flavonoid glycosides from the stem bark of Margaritaria discoidea demonstrate antibacterial and free radical scavenging activities. Phytotherapy Research, 28: 784-787.
- Dickson R.A, Mensah M.L.K, Thomford K.P, Annan K, Mills-Robertson F.C, Appiah A.A, Quarshie O, Antwi S, Edoh D (2013). Quality and safety evaluation of a Ghanaian polyherbal product EAF-2011 for the management of superficial mycoses. International Journal of Medicine and Biomedical Research, 2: (2), 91-102.
- K. Annan, R.A. Dickson, K. Sarpong, C. Asare, K. Amponsah, E. Woode (2013). Antipyretic activity of Polyalthia longifolia Benth. & Hook. F. var. pendula (Annonaceae), on lipopolysaccharide-induced fever in rats. Journal of Medical and Biomedical Sciences, 2 (1): 8-12.
- Amponsah, I.K., Fleischer T.C., Annan, K, Dickson, R.A., Mensah A.Y. and Sarpong F.M. (2013) Anti-inflammatory, antioxidant and antimicrobial activity of the stem bark extract and fractions of Ficus exasperata Vahl. (Moraceae). Journal of Pharmacognosy and Phytochemistry 2 (6): 101-106 (3): 38-44.
- IK Amponsah, TC Fleischer, RA Dickson, K Annan, V Thoss (2013). Evaluation of anti-inflammatory and antioxidant activity of Furanocoumarins and Sterolin from the stem bark of Ficus exasperata Vahl (Moraceae). Journal of Scientific and Innovative Research 2 (5), 880-887.
- Kofi Annan, R.A. Dickson, Isaac K. Amponsah, Isaac K. Nooni (2013). The heavy metal contents of some selected medicinal plants sampled from different geographical locations. Pharmacognosy Research, 5 (2):103-108.
- J. A. Sarkodie, T.C. Fleischer, D.A. Edoh I, R.A. Dickson, M.L.K. Mensah, K. Annan, E. Woode G.A. Koffour , A.A. Appiah I and H. Brew-Daniels I (2013). Antihyperglycaemic activity of ethanolic extract of the stem of Adenia lobata Engl (Passifloraceae). International Journal of Pharmaceutical Sciences and Research, 4(4): 1370-1377.
- Rita A. Dickson, Kofi Annan, Theophilus C. Fleischer and Peter J. Houghton (2012). Benthaminin 3, a Novel Antibacterial Cassane-type furanoditerpenoid from Caesalpinia benthamiana. Journal of Pharmacy and Nutrition Sciences, 2, 1-6.
- Rita A. Dickson, Kofi Annan, Theophilus C. Fleischer, Isaac K. Amponsah, Kwabena Nsiah and J.A. Oteng (2012). Phytochemical Investigations and Nutritive Potential of Eight Selected Plants from Ghana. Journal of Pharmacy and Nutrition Sciences, 2, 172-177.
- Dickson, R.A., Fleischer TC, Ekuadzi E, Komlaga G (2012). Anti-inflammatory, antioxidant and selective antibacterial effects of Euadenia eminens root bark. African Journal of Traditional and Complementary and Alternative Medicine 9 (2): 271-276.
- Annan, K. K Sarpong, C. Asare, R.A. Dickson, I. K. Amponsah, B. Gyan, M. Ofori, S. Y. Gbedemah (2012). In vitro anti-plasmodial activity of three herbal remedies for malaria in Ghana: Adenia cissampeloides (Planch.) Harms., TerminaIia ivorensis A. Chev, and Elaeis guineensis Jacq. Pharmacognosy Research, 4 (4): 225-229.
- Edmund Ekuadzi, Rita A. Dickson and Theophilus C. Fleischer (2012). Antibacterial anti-inflammatory and antioxidant properties of Gouania longipetala Hemsl. International Journal of Pharmaceutical Sciences and Research 3 (5)1300-1305.
- Dickson, R.A., Ekuadzi, E., K. Annan, G. Komlaga (2011). Antibacterial, anti-inflammatory and antioxidant effects of the leaves and stem bark of Glyhaea brevis (Spreng) Monachino (Tiliaceae): A Comparative study. Pharmacognosy Research 3: 166-172.
- Dickson, R.A., Annan K, Komlaga, G (2011). Pharmacognostic Standardization of the Leaves and Root Bark of Caesalpinia benthamiana. Pharmacognosy Journal; 3 (24): 31-34.
- Dickson, R.A., T. C. Fleischer, P. J. Houghton. Cassane-type diterpenoids from the genus Caesalpinia (2011). Pharmacognosy Communications, 1: 63-77.
- Annan K, Jackson N, Dickson R.A, Sam G.H, Komlaga G (2011). Acaricidal effect of an isolate from Hoslundia opposita Vahl against Amblyomma variegatum (Acari: Ixodidae). Phcog Res; 3:185-8.
- Fleischer T.C, Sarkodie J.A, Komlaga G, Mensah MLK, Dickson R.A, and Kuffour G (2011). Hypoglycaemic and antioxidant activities of the stem bark of Morinda lucida Benth in Streptozotocin – Induced Diabetic Rats. Pharmacognosy Communication. 1 (2):23-28.
- Dickson, R.A., Fleischer, T.C., Ekuadzi, E., Mensah, A.Y., Annan, K., Woode, E. (2010). Antibacterial, Antioxidant and Anti-inflammatory properties of Margaritaria discoidea, a wound healing remedy from Ghana. Pharmacognosy Journal 2: 32-39.
- Kofi Annan, Rita Dickson, Abraham Yeboah, Theophilus Christian Fleischer (2009) Acaricidal effect of Plumbago zeylanica L. against Amblyoma variegatum. Pharmacognosy Journal 1(3):190-194.
- Annan, K. and Dickson, R.A. (2008). Evaluation of wound healing actions of Hoslundia opposita Vahl., Anthocleista nobilis G. Don. And Balanites aegyptiaca L. Journal of Science and Technology, 28: 26-35 (2008).
- Juliani, H. Rodolfo; Simon,James E. ; Quansah, Charles; Asare, Eric ; Akromah, Richard; Acquaye Dan ; Asante-Dartey, Julie ; Mensah, Merlin L. K. ; Fleischer, Theophilus C. ; Dickson, R.A; Annan, Kofi ; Mensah, Abraham Y (2008). Chemical diversity of Lippia multiflora essential oils from West Africa. J. Essent. Oil Res. 20, 49-55.
- Dickson, R.A., Houghton, P.J., Hylands, P.J. (2007). Antibacterial and antioxidant cassane diterpenoids from Caesalpinia benthamiana. Phytochemistry 68, 1436-1441 (2007).
- Dickson, R.A., Houghton, P.J., Hylands, P.J., Gibbons, S. (2006). Antimicrobial, resistance-modifying effects, antioxidant and free radical scavenging activities of Mezoneuron benthamianum Baill., Securinega virosa Roxb. & Wlld. and Microglossa pyrifolia Lam. Phytother. Res. 20, 41-45 (2006). *
- Mensah, A.Y., Houghton, P.J., Dickson, R.A., Fleischer, T.C., Heinrich, M. and Bremner, P. (2006). In vitro evaluation of effects of two Ghanaian plants relevant to wound healing. Phytother. Res. 20, 941-944 (2006). *
- Lakshmi, S.M., Kumar, C.K.A., Dickson, R.A., Mandal, S.C. (2006). Colour and pigments of medicinal plants and the postharvest practices for their preservation: A review. Stewart Postharvest Review 5: 15, 1-6 (2006).
- Rita A. Dickson (2010). Current trends in natural product research in Ghana-Views from WANNPRES, Ghana Chapter. Science and Technology Magazine, KNUST. P. 40 - 41.
- Frances Owusu-Daaku and Rita Akosua Dickson (2011). Inspiring women in the field of Pharmacy. Commonwealth Scholarships Alumni Features: ‘Women as agents of change’ (http://cscuk.dfid.gov.uk/blog/2011/11/22/alumni-feature-women as agents of change-november-2011/).
- Dickson, R.A., Houghton, P.J., Hylands, P.J. (2006). Antibacterial and resistance-modifying effects of Mezoneuron benthamianum. J. Pharm. Pharmacol., 144 (supp 1), A-53.
- Dickson, R.A., Houghton, P.J., Hylands, P.J. (2006). Antibacterial and resistance-modifying effects of Caesalpinia benthamiana. Planta Medica 72: P017.
- Dickson, R.A., Houghton, P.J., Hylands, P.J (2005). Antibacteria and antioxidant cassane diterpenoids from Mezoneuron benthamianum. J. Pharm. Pharmacol., 145 (supp), S-71.
- Mensah, A.Y., Houghton, P.J., Fleischer, T.C., Mensah, M.L.K., Agyare, K., Annan, K. and Dickson, R.A (2004b). Antimicrobial and antioxidant aspects of Commelina diffusa, a Ghanaian plant used traditionally for wound healing. J. Pharm. Pharmacol., 56: S-79.
Book
- Rita Dickson (2010). Anti-infective and wound healing agents of plants sourced from Ghana, ISBN number, 978-3-8383-9319-3, published by LAMBERT Academic Publishing AG & Co. KG.
Book chapters
- Fleischer, T.C., Mensah, M.L.K. and Dickson, R.A (2009). Medicinal and Aromatic Plants of Ghana in Juliani, H.R., J.E. Simon and C.T. Ho (eds). African Natural Plant Products: New Discoveries and Challenges in Chemistry and Quality. American Chemical Society Symposium Series 1021. American Chemical Society, Washington, D.C. USA. 14: 241-262.
- R.A. Dickson, K. Annan and A.Y. Mensah (2011). Toxicity problems associated with herbs in: Herbal Drugs: A Modern approach to understand them better. Subhash C. Mandal (eds). ISBN number, 9788173816536 published by the New Central Book Agency (p) Ltd.
Technical Report
- Mensah, M.L.K., Fleischer, T.C., Annan, K., Mensah, A.Y., Dickson, R.A, Sarpong, K. (2002) Monograph on Moringa oleifera leaf. Lam. Technical report submitted to Phyto Riker Pharmaceutical (GIHOC) Limited).
Selected Conference Proceedings
- Dickson, R.A, Thomford, K. P., Mensah, M.L.K, Mills-Robertson, F.C., Sarfo, B. and Annan, K. (2012). A Prospective, randomised, double-blind, parallel-controlled trial to evaluate the safety and effectiveness of a herbal product EAF-2011, for the management of superficial mycoses’ at the 5th Annual Conference of the Ghana Biomedical Convention, at the Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana, July to August, 2012.
- Dickson, R.A., Alhassan, A.T (2012). Antihelminthic potential of ethnomedicinal plants sourced from the Northern Region of Ghana. 5th Scientific meeting of the Western Africa Network Of Natural Products Research Scientists (WANNPRES) Nigeria, August 5 – 8, 2012.
- Ekuadzi, E., Dickson R.A, Fleischer T.C (2012). Anti-Inflammatory and Antioxidant Effects of Gouania longipetala Hemsl (Rhamnaceae) (Abstract No SL 21). 5th Scientific meeting of the Western Africa Network Of Natural Products Research Scientists (WANNPRES) Nigeria, August 5 – 8, 2012.
- Fleischer, T.C, Amponsah I K, Dickson R.A, Mensah A.Y, Annan K, Woode E (2012). Anti-inflammatory, antimicrobial and antioxidant constituents of the stem bark of Ficus exasperate Vahl. (Abstract No. SL 22). 5th Scientific meeting of the Western Africa Network Of Natural Products Research Scientists (WANNPRES) Nigeria, August 5 – 8, 2012.
- Sarkodie, J.A., Fleischer, T.C., Dickson, R.A., Mensah, M.L.K., Annan, K., E.Woode, E (2012). Hypoglycaemic activities of the constituents of Adenia lobata (Abstract No. PO 08). 5th Scientific meeting of the Western Africa Network Of Natural Products Research Scientists (WANNPRES) Nigeria, August 5 – 8, 2012.
- Annan, K., Amponsah, I.K., Dickson, R.A (2012). Thin layer chromatography as a quality control tool for selected herbal products used in treating malaria in the Ghanaian market. (Abstract No. PO11). 5th Scientific meeting of the Western Africa Network of Natural Products Research Scientists (WANNPRES) Nigeria, August 5 – 8, 2012.
- Dickson R.A, Burks, H (2011). ‘Bioactive Natural Products from Medicinal plants brewed in the Ghanaian Pot- Norvatis Biomedical Research Institute, Cambridge, USA, August, 2011.
- Dickson, R.A. (2011). An overview of research areas on medicinal plants in the Department of Pharmacognosy at the meeting of the Global Discovery Chemistry Group, Norvatis Institutes for Biomedical Research, Cambridge, MA, USA, July, 2011.
- Dickson, R.A. (2010) The menace of hair lice infestation in Ghana: A myth or reality? and Mensah A.Y, Donkor P.O, Sarpong K, Fleischer TC, Dickson R.A, Annan K, Woode E (2010). Anti-Inflammatory activity of the leaves of Wissadula amplissima at the 4th Scientific Meeting of Western African Network of Natural Products Research Scientists (WANNPRESS), August 01-04, 2010; Ouagadougou, Burkina Faso.
- Dickson R.A, Houghton, P. Benthaminin 3, a Novel Antibacterial Cassane-type furanoditerpenoid from Caesalpinia benthamiana’ at the 51st Annual meeting of the American Society of Pharmacognosy and the Phytochemical Society of North America themed Natural Solutions to 21st Century problems –From discovery to commercialization at the Tradewinds Island Grand, St. Petersburg Beach, Florida, July 2010.
- Ekuadzi E, Dickson R.A, Fleischer T.C Mensah A.Y, Mensah M.L.K, Woode E, Sarpong K, Annan K, Komlaga G and Kuffour G (2010). Antibacterial and antioxidant Effect of Marigataria discoides, Glyphaea brevis and Euadenia eminens. WANNPRES-Ghana, March, 2010.
- Sarkodie J.A, Fleischer T.C Mensah A.Y, Mensah M.L.K, Woode E, Sarpong K, Annan K, Dickson R.A, Komlaga G and Kuffour G (2010). Antidiabetic activity of the Stem of Adenia lobata in Streptozotocin-Induced Diabetic Rats. WANNPRES-Ghana, March, 2010.
- Mensah A.Y, Donkor P.O, Sarpong K, Fleischer T.C, Dickson R.A, Annan K and Woode (2010) Anti-inflammatory Activity of the Leaves of Wissadula amplissima. WANNPRES-Ghana, March, 2010.
- Dickson, R.A, Annan K, Lartey N.R (2010). The Prevalence of Hair Lice Infestation in Akwapim South and Agona East Districts of Ghana and some Medicinal plants used in their management.
Dickson R.A, Annan K, Opare-Addo B (2010).The Problem of Hair Lice Infestation in the Atwima Mponua and Ga West Districts in the Ashanti and Greater Accra Regions of Ghana and the use of local herbs in the Management of the condition. WANNPRES-Ghana, March, 2010.
- Dickson R.A (2009). ‘Novel antimicrobial, antioxidant and resistance-modifying cassane-type furanoditerpenoids from Caesalpinia benthamiana at the Commonwealth Pharmacist Association Conference, Accra-Ghana, August, 2009.
- Sarkodie J.A, Fleischer T.C, Mensah A.Y, Mensah M.L.K, Sarpong K. Annan K., Dickson R.A, Komlaga G., Woode E. and Kuffour G. (2009) A terpenoid, MLP, isolated from the petroleum extract of stem bark of Morinda lucida shows hypoglycaemic effect in streptozotocin-induced diabetic rats. An oral presented at the College of Health Sciences 2nd Scientific Conference 2009, Held at Miklin Hotel, Kumasi, 10th – 11th September 2009.
- Sarkodie J.A, Fleischer T.C, Mensah A.Y, Mensah M.L.K, Sarpong K. Annan K., Dickson R.A, Komlaga G., Woode E. and Kuffour G. (2009). A terpenoid, MLP, isolated from the petroleum extract of stem bark of Morinda lucida shows hypoglycaemic effect in streptozotocin-induced diabetic rats; Fleischer T.C., Mensah,
- M.L.K., Mensah, A.Y., Annan, K., Sarpong, K., Dickson, R.A., Komlaga, G., Glah, E.D., Argyropoulou, C. and Skaltsa, H (2009) Mosquito repellent potential of some essential oils of medicinal plants growing in Ghana. Presented at the College of Health Sciences 2nd Scientific Conference 2009, Held at Miklin Hotel, Kumasi, 10th – 11th September 2009.
- Dickson R.A., Sarpong K., Mensah M.L.K., Fleischer T.C., Mensah A.Y., Annan K., Komlaga G., Sam G. H., Houghton P. J. and Gibbons S. (2009). “Novel Antimiicrobial, Antioxidant and Resistance Modifying Causane-Type Furano-Diterpenoids from Caesalpinia benthamiana” A poster presented at the 10th Commonwealth Pharmaceutical Association Conference on ‘Managing Threats and Crisis: The Vital Role of Pharmacy in an Unstable World” held at Accra, Ghana, 5th to 9th August 2009.
- Dickson, R.A., Houghton, P., Hylands, P. (2007). Novel cassane-type diterpenoids from Caesalpinia benthamiana’ at the 50th Anniversary meeting of the Phytochemical Society of Europe, Cambridge, April, 2007.
- Dickson, R.A., Houghton, P (2006). Antibacterial and resistance-modifying effects of Mezonueron benthamianum’ at the 54th Annual Meeting of the Society for Medicinal plant Research, Helsinki, August 29, 2006.
- Dickson, R.A., Houghton, P (2006). Antimicrobial and Antioxidant properties of three plants sourced from Ghana and their relevance to wound-healing’ at the Ninth International Conference on Ethnopharmacology, Nanning, China, August 22-26, 2006.
- Dickson, R.A., Houghton, P (2006). Antibacterial and resistance-modifying effects of Mezonueron benthamianum at the 47th Annual Meeting of the American Society of Pharmacognosy. Natural Products on Target at Crystal Gateway Marriot, Arlington, Virginia, Washington, DC, August 5-9, 2006.
- Dickson, R.A., Houghton, P. (2006). Antibacterial and resistance-modifying effects of Mezoneuron benthamianum at the British Pharmaceutical Conference (BPC 2006). Personalised medicine healthcare at the Manchester International Convention Centre, September 5, 2006.
- Dickson, R.A., Houghton, P (2006). Antimicrobial and Antioxidant properties of three plants sourced from Ghana at the conference on ‘Natural products active against human pathogens (Academy of Pharmaceutical Sciences-ASP), at Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, April 7, 2006.
- Dickson, R.A., Houghton, P. (2005). Antibacterial and Antioxidant cassane-type diterpenoids from Mezoneuron benthamianum at the British Pharmaceutical Conference (BPC 2005). A common vision for health-Linking science with practice in Manchester International Convention Centre, September 27, 2005.
- Dickson, R.A (2005). Provision of Healthcare services in Ghana, a presentation given to the final year Pharmacy students of the School of Pharmacy, London, December, 2005.
- Dickson, R.A., Houghton, P, Hylands, P (2005). Antibacterial cassane diterpenes from Mezoneuron benthamianum’ at the 53rd Annual Congress of the Society of Medicinal Plant Research (GA) in Florence, Italy, August 21-25 2005.
- Dickson, R.A., Houghton, P, Hylands, P (2005). Antibacterial and Antioxidant cassanediterpenes from Mezoneuron benthamianum’ at Kew- Kings Square Phytochemical Scientific Meeting, King’s College London, October 17, 2005.
- Dickson, R.A., Houghton, P (2004). Antimicrobial properties of three plants from Ghana used for the treatment of skin diseases’ at the Ninth International Congress of Ethnobiology in collaboration with the 45th Annual Meeting of the Society for Economic Botany and the 8th International Congress of Ethnopharmacology- ‘Ethnobiology, Social Change and Displacement’, hosted by the Department of Anthropology, University of Kent, Canterbury, June 13-17, 2004.
- Dickson, R.A (2004). Antimicrobial and wound-healing properties of some plants from Ghana’ at Pharmacognosy Research Group Meeting, King’s College London, July 30, 2004.