Soto, A., and C. Cruz. “Diabetic Retinopathy and Diabetic Macular Edema: Prevalence in a Family Health Care Center of Antofagasta”. Revista Chilena De Salud Pública, vol. 22, no. 2, May 2019, pp. p. 155-160, doi:10.5354/0719-5281.2018.53246.