title: The safety and efficacy of a new patient-controlled analgesia device in hospitalized trauma and surgery patients.
mesh_terms: D000328:Adult; D000368:Aged; D000698:Analgesia / Q000295:instrumentation* / Q000379:methods; D004869:Equipment Safety; D005260:Female; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage*; D010146:Pain / Q000188:drug therapy; D012646:Self Administration / Q000295:instrumentation / Q000379:methods
chemical_list: D009020:Morphine