[1] Minist Hlth, Ophthalmol Dept, Maputo, Mozambique
[2] Task Force Global Hlth, Decatur, GA USA
[3] London Sch Hyg & Trop Med, Clin Res Dept, London, England
[4] RTI Int, Maputo, Mozambique
[5] Cent Hosp Nampula, Nampula, Mozambique
[6] Cent Hosp Quelimane, Quelimane, Mozambique
[7] Cent Hosp Maputo, Maputo, Mozambique
[8] Light World, Addis Ababa, Ethiopia
[9] RTI Int, Washington, DC USA
[10] Sightsavers, Haywards Heath, England