JEB -- Uesaka et al. 204 (17): 3019 Figure IG4

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Fig. 4. Oscillation of intracellular Ca²⁺ concentration ([Ca²⁺]_i) in a region of the atrial myocardium. The [Ca²⁺]_i was determined by measuring the brightness of all pixels (N=1200) in the region, and the mean brightness ± S.E.M. was obtained. Error bars were all smaller than the size of the symbol. EI-14 (10^-7moll^-1) was applied at time zero.