Internal sphincterotomy. An appraisal with special reference to sequelae.
D000328:Adult; D000368:Aged; D005260:Female; D005401:Fissure in Ano / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications