677 Tissue Doppler imaging contributes to the early detection of systolic cardiac dysfunction in hypertensive individuals - Tapanlis, EN; Chrissos, DN; Kalsaros, AA; Chalzislamatiou, E; Kakavas, AT; Korovesi, NC; Tsioufis, CP; Kallikazaros, IE (European Journal of Echocardiography, 2005)