1. Department of Pharmacology, Therapeutics and Toxicology, Lagos State University College of Medicine, Ikeja, Nigeria
2. Department of Medicine, Lagos State University Teaching Hospital, Ikeja, Nigeria
3. Department of Pharmacology and Therapeutics, College of Medicine, Ekiti State University, Ado-Ekiti, Nigeria
4. Disease Surveillance Unit, Nigerian Center for Disease Control, Abuja, Nigeria
5. Department of Pharmacy, Nyangabgwe Hospital, Francistown, Botswana
6. Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden
7. Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK