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Figure 2 Sinus node recovery times in wild-type (A) and IKACh-deficient (B) mice after pacing for 30 s at a cycle length of 150 ms. (A) The sinus node recovery times were 315 ms at baseline and 505 ms after carbachol administration. (B) The sinus node recovery times were 255 ms at baseline and 300 ms after carbachol. Pre-CCH = before administration of carbachol; Post-CCH = after administration of carbachol; RA IECG = right atrial intracardiac electrogram; RV IECG = right ventricular intracardiac electrogram.
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