Siddique, M.I., Murshed, K.M. and Majid, M. 2008. Comparative study of lateral internal sphincterotomy versus local 0.2%glyceryl trinitrate ointment for the treatment of chronic anal fissure. Bangladesh Medical Research Council Bulletin. 34, 1 (Sep. 2008), 12–15. DOI:https://doi.org/10.3329/bmrcb.v34i1.1163.