[Clinical use of direct vision internal urethrotomy].
D005260:Female; D006801:Humans; D008297:Male; D014521:Urethra / Q000601:surgery*; D014524:Urethral Obstruction / Q000209:etiology / Q000601:surgery; D014525:Urethral Stricture / Q000209:etiology / Q000601:surgery*; D001748:Urinary Bladder Neck Obstruction / Q000601:surgery; D014947:Wounds and Injuries / Q000150:complications