title: Patient controlled analgesia following myocardial infarction.
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009020:Morphine / Q000008:administration & dosage; D009203:Myocardial Infarction; D010146:Pain / Q000188:drug therapy*; D012646:Self Administration / Q000379:methods
chemical_list: D009020:Morphine