Prajapati, V. A., D. Vasavada, S. M. Patel, W. Chauhan, and V. Prajapati. “A Study of Evaluation of Various Risk Factors of Retinal Vein Occlusion”. International Journal of Research in Medical Sciences, vol. 2, no. 3, Jan. 2017, pp. 1054-7, https://www.msjonline.org/index.php/ijrms/article/view/2351.