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Regression studies (Studies A and B): Cardiac function, infarct size, and myofibroblast counts. (A) Cardiac function (as measured by ejection fraction [EF%]), (B) Infarct size determination (measured by IHC and expressed as % of tissue length), and (C) Myofibroblast count (measured by IHC and expressed as % of infarct area). EF, ejection fraction; IHC, immunohistochemistry; N/A, not available. Data are presented as mean ± SEM. *P < 0.05.
