Adrianzén, Rosa Elena, Miguel Rioja, and Alberto Manrique. 2019. “Frequency and Severity of Diabetic Retinopathy in Patients With Type 2 Diabetes Mellitus at the Regional Institute of Ophthalmology”. Revista Peruana De Medicina Experimental Y Salud Pública 36 (2): 260-4. https://doi.org/10.17843/rpmesp.2019.362.4076.