1. Ophthalmology Unit, Surgery Department, Usmanu Danfodiyo University, Sokoto, Nigeria
2. Sightsavers, Kaduna, Nigeria
3. Ophthalmology Department, University of Jos, Jos, Nigeria
4. National Eye Centre, Kaduna, Nigeria
5. Netherlands Leprosy Relief, Nigeria
6. Gambo Sawaba Hospital, Zaria, Nigeria
7. Federal Ministry of Health, Abuja, Nigeria
8. Task Force for Global Health, Decatur, GA, USA
9. Kaduna State Ministry of Health, Kaduna, Nigeria
10. Water Sanitation and Hygiene, Department of Public Health, Social and Environmental Determinants of Health, World Health Organization, Geneva, Switzerland
11. Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK
12. London Centre for Neglected Tropical Disease Research, London, UK