title: Clinical experience of low-dose epidural morphine as a post-operative analgesic in patients undergoing hemorrhoidectomy.
authors: H F
authors: HF
authors: Ng
authors: Y L
authors: YL
authors: Hui
authors: P P
authors: PP
authors: Tan
mesh_terms: D000328:Adult; D000368:Aged; D006484:Hemorrhoids / Q000601:surgery*; D006801:Humans; D007268:Injections, Epidural; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage* / Q000009:adverse effects; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D009020:Morphine