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Photomicrographs of the plantar muscle of Wistar rats, 22nd postoperative day. Cross section, NADH-TR (Nicotinamide Adenine Dinucleotide Tetrazolium Reductase) reaction. Muscle fibres of types I, IIa, and IIb. Control (A), lesion (B), sericin (C), swimming (D), and sericin and swimming (E, F).
