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[1] Braunwald E,Antman EM,Beasley JW,et al. ACC/AHA guideline update for the management of patients with unstable angina and nonSTsegment elevation myocardial infarction-2002:summary article: a report of the American College of Cardiology/American Heart Association Task Force Guidelines (Committee on the Management of Patiens With Unstable Angina)[J]. Circulation,2002, 106(14):1893-1900.
[2] 王士雯,钱方毅. 老年心脏病学[M].第2版.北京:人民卫生出版社,1999:325-325.