1. African Centre for Excellence in Phytomedicine, University of Jos, Jos, Nigeria
2. Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
3. Department of Biochemistry, Faculty of Basic Medical Sciences, University of Jos, Jos, Nigeria
4. Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom