Impairment of left ventricular function during coronary angioplastic occlusion evaluated with a non-imaging scintillation probe - Hartmann, A; Maul, FD; Zimny, M; Klepzig, H; Vallbracht, C; Kneissl, HG; Schräder, R; Hör, G; Kaltenbach, M (Am J Cardiol, 1991)