Cover: Immunohistochemical detection of a-actinin-3 (red) and slow, type 1, fiber-specific myosin heavy chain (green) expression in mouse skeletal muscle. a-Actinin-3 is not expressed in slow, type 1, fibers, but is instead restricted to a subset of fast, type 2, fibers. See Article by Mills et al., in this issue, pp. 1335-1346.
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