Thapa, R., G. Paudyal, A. Crandall, and G. Tabin. “Vitreo-Retinal Disorders at High Altitude in Nepal”. Nepalese Journal of Ophthalmology, vol. 5, no. 1, Mar. 2013, pp. 57-62, doi:10.3126/nepjoph.v5i1.7823.