M. B. Amin, K. P. Rekha, F. Shegufta, M. T. Rahman, N. Abedin, and A. Mohiuddin, “Resistive index of retinal arterial blood flow in type-II diabetics without retinopathy”, Bangladesh med. j. Khulna, vol. 47, no. 1-2, pp. 7–11, Mar. 2015.