title: Is exercise beneficial--or hazardous--to your heart?
authors.forename: G D
authors.initials: GD
authors.lastname: Curfman
mesh_terms: D016022:Case-Control Studies; D004734:Energy Metabolism; D015444:Exercise; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology*; D005082:Physical Exertion; D012307:Risk Factors