title: Prolonged drainage of ano-rectal abscesses preliminary to elective anal fistulotomy.
mesh_terms: D000038:Abscess / Q000601:surgery; D001004:Anus Diseases / Q000601:surgery*; D004322:Drainage; D005401:Fissure in Ano / Q000601:surgery; D006801:Humans; D011300:Preoperative Care; D012002:Rectal Diseases / Q000601:surgery*