1. Department of Environmental Management, Bayero University Kano, Kano, Nigeria
2. Department of Community Medicine, Bayero University and Aminu Kano Teaching Hospital, Kano, Nigeria
3. Department of Internal Medicine, Federal University Dutse, Dutse, Jigawa, Nigeria
4. Department of Nursing Science, Hemodialysis Unit, Aminu Kano Teaching Hospital, Kano, Nigeria
5. Department of Public Health, Texila American University, Georgetown, Guyana, Niger
6. Department of Public Health, Maryam Abacha American University of Niger, Maradi, Niger
7. Department of Internal Medicine, Rasheed Shekoni Teaching Hospital, Dutse, Jigawa, Nigeria
8. Department of Chemical Pathology and Immunology, Aminu Kano Teaching Hospital, Bayero University, Kano, Nigeria