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  1. 1
    Joaquin Martinez, Erick Hernandez-Bogantes, Lihteh Wu, Diabetic retinopathy screening using single-field digital fundus photography at a district level in Costa Rica: a pilot study, International Ophthalmology, 2011, 31, 2, 83

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  2. 2
    Richard Le Mesurier, Eye care provision in the developing world: a regional perspective, Clinical & Experimental Ophthalmology, 2006, 34, 4