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Confocal laser scanning microscopic images of the capillaries in tibial nerve (A: Control; B: Elderly ; C: Elderly with aerobic exercise). In each image, the tibial nerve run obliquely from the upper left to the lower right. The capillaries in Cont (image A) and Elder+Ex (image C) seemed to be more compact than Elderly (image B). The arrows indicate the capillaries. The scale of a bar is 100 μm.
