Circulating Matrix Metalloproteinase-3 and Metalloproteinase-9 and Tissue Doppler Measures of Diastolic Dysfunction to Risk Stratify Patients With Systolic Heart Failure - Buralli, Simona; Dini, Frank Lloyd; Ballo, Piercarlo; Conti, Umberto; Fontanive, Paolo; Duranti, Emiliano; Metelli, Maria Rita; Marzilli, Mario; Taddei, Stefano (American Journal of Cardiology, 2010)