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Averaged hysteresis loops for INCX density vs. [Ca]i during application of caffeine in Sham, DT Sham, CAL, and DT CAL myocytes; n = 11/5, 9/5, 7/4, 7/4, respectively. Inset: loop on expanded scales: x and y-scale bars represent 0.1 μM and 0.2 pA/pF, respectively.
