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Light microscopy of the sternocleidomastoid muscle showing mild to moderate variation in fiber size (A: Haematoxylin & Eosin staining), a fiber with eosinophilic cytoplasmic bodies (B: arr owheads; Haematoxylin & Eosin staining), moderate subsarcolemmal accentuation of SDH activity C, combined COX/SDH histochemistry), and moderate subsarcolemmal accentuation of NADH activity (D: NADH histochemistry). Bars indicate 50 μm in A, 20 μm in B, and 25 μm in C and D.
