Thapa, R., D. Joshi, A. Rizyal, N. Maharjan, and R. Joshi. “Prevalence, Risk Factors and Awareness of Diabetic Retinopathy Among Admitted Diabetic Patients at a Tertiary Level Hospital in Kathmandu”. Nepalese Journal of Ophthalmology, Vol. 6, no. 1, July 2014, pp. 24-30, doi:10.3126/nepjoph.v6i1.10760.