1. National Hospital Ambulatory Medical Care Survey: 2001 emergency department summary. Advance data from Vital and Health Statistics # 335;McCaig,2003
2. National Hospital Discharge Survey: 2001 annual summary with detailed diagnosis and procedure data. National Center for Health Statistics;Kozak;Vital Health Stat,2004
3. Braunwald E, Antman EM, Beasley JW, et al. ACC/AHA 2002 guideline update for the management of patients with unstable angina and non–ST-segment elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on the Management of Patients With Unstable Angina). 2002. Available at: http://www.acc.org/clinical/guidelines/unstable/unstable.pdf. Accessed February 1, 2005.
4. The pathogenesis of coronary artery disease and the acute coronary syndromes;Fuster;N Engl J Med,1992
5. Coronary arteriographic findings soon after non-Q-wave myocardial infarction;DeWood;N Engl J Med,1986