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Piyasena, Mapa Mudiyanselage Prabhath Nishantha, Gudlavalleti Venkata S. Murthy, Jennifer L. Y. Yip, Clare Gilbert, Maria Zuurmond, Tunde Peto, Iris Gordon, Suwin Hewage, a Sureshkumar Kamalakannan. "Systematic Review On Barriers and Enablers for Access to Diabetic Retinopathy Screening Services in Different Income Settings." PLoS One 2019.

Piyasena, Mapa Mudiyanselage Prabhath Nishantha, et al. "Systematic Review On Barriers and Enablers for Access to Diabetic Retinopathy Screening Services in Different Income Settings." PLoS One 2019.