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(a) Myocardial apoptotic rate determined with TUNEL staining in control and doxorubicin-treated hearts. (b) and (c) Representative TUNEL staining (with DAPI costaining) in control and doxorubicin-treated hearts. Nuclei are stained blue. TUNEL positive nuclei are green/cyan. 10x, white bar = 200 μm, *P < 0.05 versus control. LV, left ventricle; RV, right ventricle; n = 4/group.
