1. Department of Medicine and Surgery, University of Ilorin, Ilorin, Nigeria
2. Department of Medicine and Surgery, Lagos State University College of Medicine, Lagos, Nigeria
3. Department of Health Sciences, Western Illinois University, Macomb, IL
4. Department of Health, University of North Texas, Health Science Centre, Fort Worth, TX
5. Department of Medicine and Surgery, Griffith College Dublin, Dublin, Ireland
6. Department of Medicine and Surgery, University of Calabar, Calabar, Nigeria
7. College of Medicine, University of Lagos, Lagos, Nigeria
8. Department of Medicine and Surgery, Afe Babalola University, Ado-Ekiti, Nigeria
9. Department of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
10. Department of Internal Medicine, Trinity Health Centre, Grand Rapids, MI
11. Department of Medicine and Surgery, Ladoke Akintola University of Technology, Ogbomoso, Nigeria.