title: Presidential address. Lateral subcutaneous internal anal sphincterotomy for anal fissure.
mesh_terms: D000328:Adult; D000368:Aged; D002481:Cellulitis / Q000209:etiology; D005069:Evaluation Studies as Topic; D005401:Fissure in Ano / Q000150:complications / Q000209:etiology / Q000601:surgery*; D005500:Follow-Up Studies; D006484:Hemorrhoids / Q000150:complications / Q000601:surgery; D006801:Humans; D008722:Methods; D008875:Middle Aged; D011183:Postoperative Complications; D013997:Time Factors; D014945:Wound Healing