title: Methods of relief of postoperative pain.
mesh_terms: D000328:Adult; D000368:Aged; D006801:Humans; D007273:Injections, Intramuscular; D009294:Narcotics / Q000008:administration & dosage*; D010149:Postoperative Pain / Q000188:drug therapy*
chemical_list: D009294:Narcotics