SURGICAL RISK SCORES OUTWEIGH ECHOCARDIOGRAPHIC SEVERITY OF AORTIC STENOSIS FOR DETERMINING PROGNOSIS IN PATIENTS WITH LOW GRADIENT SEVERE AORTIC STENOSIS AND PRESERVED LEFT VENTRICULAR FUNCTION
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY（2017）
Key words
aortic stenosis,echocardiographic severity,left ventricular function,surgical risk scores
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