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Incidence of triggered Ca2+ waves in heart failure (HF) and formamide (FORM) detubulated dog ventricular myocytes (VMs). A: linescan image during rapid pacing [basic cycle lengths indicated above the image (BCL)] in a normal VM (NVM; A), a HFVM (B), and a FORM myocyte (C). D: summary of incidence of triggered Ca2+ waves in each experimental group compared using a chi-square test (*P < 0.05).
