M. D. Bhattarai, R. Thapa, M. Bajracharya, L. Karki, B. Karki, and A. D. Rajouria, “Fundus Photography as the Base of Three-Tier Diabetic Retinopathy Care System to Its Wider Roles: Learning from a Case Experience”, J Nepal Med Assoc, vol. 59, no. 233, pp. 100–107, Jan. 2021.