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A, voltage dependence of τfast for L-currents obtained in the absence of a prepulse (•) and following brief recovery from prolonged depolarization (○). No change in τslow was observed (data not shown). B, fractional contribution of the fast (Afast/Atotal) and slow (Aslow/Atotal) components for control and accelerated L-currents is plotted versus test potential. *P < 0.001 and *P < 0.01.
