Nayak, Satish, et al. “PREVALENCE OF DIABETIC RETINOPATHY IN TYPE 2 DIABETES MELLITUS: AN OBSERVATIONAL STUDY IN SOUTHERN INDIA”. Asian Journal of Pharmaceutical and Clinical Research, vol. 10, no. 8, Aug. 2017, pp. 201-3, doi:10.22159/ajpcr.2017.v10i8.19088.