1. Department of Pharmacology, Ekiti State University, Ado-Ekiti, Nigeria
2. Department of Medicine, Ekiti State University, Ado-Ekiti, Nigeria
3. Department of Medicine, University of Ilorin, Ilorin, Nigeria
4. Department of Medicine, Imo State University, Orlu, Imo State, Nigeria
5. Department of Medicine, Usman Danfodiyo University, Sokoto, Nigeria
6. Clinical Pharmacology Unit, Department of Medicine, Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria
7. Department of Pharmacology and Therapeutics, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria
8. Department of Medicine, Federal Medical Centre, Owo, Nigeria
9. Drug Utilization Research Unit (DURU), Department of Pharmacy, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa
10. Department of Pharmacology and Therapeutics, University of Ibadan, Ibadan, Nigeria
11. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, SE-141 86, Stockholm, Sweden
12. Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK