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Ionic determinants of DF organization. DF maps of simulated hyperkalemic VF during artificial clamping to control values of EK1 and EKr (A), GK1 and GKr (B), and IKr (C). Asterisk (∗) indicates pixel location selected for plotting simulated values in panel D. (D) Plot of DF versus [K+]o for the control simulation in Fig. 6 (■) and simulations shown in panels A (•), B (▴), and C (▾).
