1. Department of Community Medicine, Federal Teaching Hospital Abakaliki, Nigeria
2. Department of Community Medicine, Ebonyi State University, Abakaliki, Nigeria
3. Department of Internal Medicine, Ebonyi State University/Federal Teaching Hospital, Abakaliki, Nigeria
4. Department of Community Medicine, University of Nigeria, Enugu Campus, Nigeria
5. Department of Health Education, Ebonyi State University, Abakaliki, Nigeria