title: Preventing thromboembolism after myocardial infarction.
mesh_terms: D004434:Early Ambulation; D006493:Heparin / Q000008:administration & dosage*; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications*; D012907:Smoking / Q000150:complications; D013924:Thrombophlebitis / Q000209:etiology / Q000517:prevention & control*
chemical_list: D006493:Heparin