title: Early intravenous beta-blockade before primary percutaneous coronary intervention gives major benefits, apparently without side effects.
authors.forename: Lionel H
authors.initials: LH
authors.lastname: Opie
mesh_terms: D058671:Adrenergic beta-1 Receptor Antagonists / Q000627:therapeutic use*; D061345:Early Medical Intervention; D006801:Humans; D008790:Metoprolol / Q000627:therapeutic use*; D009203:Myocardial Infarction / Q000188:drug therapy*
chemical_list: D058671:Adrenergic beta-1 Receptor Antagonists; D008790:Metoprolol