title: Conservative approach best after heart attacks.
mesh_terms: D002170:Canada; D017023:Coronary Angiography / Q000706:statistics & numerical data*; D006801:Humans; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000628:therapy*; D009204:Myocardial Revascularization; D014481:United States