Thapa, R, et al. “Systemic Association of Newly Diagnosed Proliferative Diabetic Retinopathy Among Type 2 Diabetes Patients Presented at a Tertiary Eye Hospital of Nepal”. Nepalese Journal of Ophthalmology, vol. 7, no. 1, Sept. 2015, pp. 26-32, doi:10.3126/nepjoph.v7i1.13163.