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Effect of K201 on ICa,L. K201 suppresses systolic Ca2+ oscillations (A), dispersion of APD and CaTD (B) and ventricular arrhythmia (C). The data shown in panels A–C are from a low-resolution experiment. D&E: Rabbit ventricular myocytes were isolated from the base of the epicardium to measure ICa,L before and after 1μM K201. Current-to-voltage plots show that K201 did not alter ICa,L.
