Shahin-Ul-Islam, M., M. Z. Haque, S. M. J. Alam, M. Noman, and F. Siddiqui. “Chronic Venous Insufficiency (CVI) - A Study of 100 Cases”. Journal of Medicine, vol. 9, no. 1, Oct. 2008, pp. 20-26, doi:10.3329/jom.v9i1.1421.