1. Preferred practice pattern® guidelines. Diabetic retinopathy;American Academy of Ophthalmology Retina Panel,2008
2. Screening and prevention of diabetic blindness;Stefánsson;Acta Ophthalmol Scand,2000
3. Diabetes in Africans. Part 1: Epidemiology and clinical specificities;Sobngwi;Diabetes Metab (Paris),2001
4. Diabetes microvascular and macrovascular disease in Africa;Mbanyaa;J Cardiovasc Risk,2003
5. Screening for diabetic retinopathy in primary care with a mobile fundal camera — evaluation of a South African pilot project;Mash;S Afr Med J,2007