2Committee on management of acute myocardial infarction.1999 Update:ACC/AHA Guidelines for the management of patients with acute myocardial infarction a report of the American College of Cardiology/American Heart Association Task force on practice guidelines.J Am Coll Cardiol,1999.53-67.
3Frishman Wh,Cheng A.Secondary prevention of myocardial infracting:role of beta-adrenergic blockers and angiotensin-coverting enzyme inhibitors.Am Heart J,1999,137:S25-S34.
4Stephen S,Gottlieb,Robert J.Effect of beta-blocters on mortality among highrisk and low-risk patients ater myocardial infarcting.New Engl J Med,1998,339:489-497.