1. Department of Pharmacology, University of Ghana Medical School, Korle Bu, Ghana.
2. Department of Chemistry, University of Ghana, Legon, Ghana.
3. Department of Anatomy, University of Ghana Medical School, Korle Bu, Ghana.
4. School of Allied Health Sciences, College of Health Sciences, Korle Bu, Ghana.
5. Department of Community Health, University of Ghana Medical School, Korle Bu, Ghana.
6. Immunology Department, Noguchi Memorial Institute for Medical Research, Legon, Ghana.