1. Department of Medicine, College of Medicine, University of Lagos, Lagos State, Nigeria
2. Department of Medicine, Lagos University Teaching Hospital, Lagos State, Nigeria
3. Department of Paediatrics, College of Medicine, University of Nigeria Teaching Hospital, Enugu State, Nigeria
4. Department of Internal Medicine, Federal Teaching Hospital Abakiliki, Ebonyi State, Nigeria
5. Department of Medicine, College of Health Sciences, University of Ilorin, Kwara State, Nigeria
6. Department of Community Medicine, Lagos University Teaching Hospital, Lagos State, Nigeria
7. Department of Public Health, College of Medicine, University of Ilorin, Kwara State, Nigeria
8. Department of Medicine, College of Medicine, University of Benin, Edo State, Nigeria
9. Department of Community Medicine and Child Health, College of Medicine, University of Lagos, Lagos State, Nigeria
10. Department of Medicine, College of Medicine, Aminu Kano University, Kano State, Nigeria