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. 2014 Apr 25;47(2):59–65. doi: 10.1267/ahc.14014

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2014 The Japan Society of Histochemistry and Cytochemistry

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 3. — Pacing frequency-dependent non-uniformity of Ca²⁺ transients in the left atria. (a) Representative X-t images of Ca²⁺ transients in six different myocytes (cell 1–cell 6) in the left atrial appendage during pacing at 1 Hz (left) and 4-Hz (right). (b) Comparison of the wavefronts of Ca²⁺ transients in (a) shown in expanded time scale. Blue arrowheads on the bottom denote the timing of pacing. (c) Corresponding plot profiles of X-t images, and mean plot profiles of the overall atrial region imaged.