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Ultrastructure of cardiomyocytes. Transmission EM images of longitudinally sectioned cardiomyocytes from sham (A) and TAC groups (B and C: 1 week and 4 weeks after TAC, respectively). Note that the distance between capillaries and the sarcomere width are increased due to TAC. cap, capillary; mf, myofibrils; mi, mitochondria; nuc, nucleus. Scale bar: 5 μm.
