Coronary spasm as a primary cause of myocardial infarction. A preliminary report.
D003327:Coronary Disease / Q000188:drug therapy* / Q000601:surgery*; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology*; D009566:Nitrates / Q000627:therapeutic use*
D009566:Nitrates