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Comparison of VL determined by Eq. 8 (red solid) with the old VL determined by Eq. 17 (blue solid). (A) Both VL values meet with Vm (black dotted) at dVm/dt = 0. The curves for the present VL and Vm are the same as those shown in Fig. 2. The gray bars indicate the time spans analyzed in panel B. (B) Modified time courses of VL after fixing of IKr (green dashed) or Iha (gray dashed). The VL (blue) curve is the same as the blue curve in panel A.
