Murshed, K., Siddique, M. and Rahman, M. (2007) “Effectiveness and Complications of 0.2% Glyceryl Trinitrate in the Treatment of Chronic Anal Fissure”, Journal of Bangladesh College of Physicians and Surgeons, 25(1), pp. 14–17. doi: 10.3329/jbcps.v25i1.167.