2Evans J, Luck A, Hewer P. Glyceryl trinitrate vs. lateral sphincterotomy for chronic anal fissure, randomized trial. Dis Colon Rectum.2001,44:93-97.
3Pitt J, Williams S, Dawson PM. Reasons for failure of glyceryl trinitrate treatment of chronic fissure-in-ano: a multivariate analysis. Dis Colon Rectum. 2001,44 : 864-867.
4Songun I,Boutkan H,Delemarre JB,et al. Effect of isosorbide dinitrate ointment on anal fissure. Dig Surg, 2003,20: 122-126.
5Griffin N,Zimmerman DD,13riel JW,et al. Topical L-arginine gel lowers resting anal pressure: possible treatment for anal. fissure. Dis Colon Rectum. 2002,45:1332-1336.
6Acheson AG, Griffin N, Scholeneld J H, et al. L-arginine-induced relaxation of the internal anal sphincter is not mediated by nitric oxide. Br J Surg,2003,90:1155-1162.
7Jost WH, Schimrigk K. Use of botulinum toxin in anal fissure. Dis Colon Rectum, 1993, 36 : 974.
8Jost WH, Schimrigk K. Therapy of anal fissure using botulin toxin. Dis Colon Rectum,1994, 37:1321-1324.
9Espi A, Melo F,Minguez M,et al. Therapeutic effects of different doses of botulinurn toxin in chronic anal fissure [abstract]. Dis Colon Rectum, 1998,41 :A16.
10Maria G, Cassetta E,Gui D,et al. A comparison of botulinum toxin and saline for the treatment of chronic anal fissure [see comments]. N Engl J Med, 1998, 338:217-220.