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Myosin heavy chain gene expression. Control, open bars; IUGR, black bars. A: MyHC-I; B: MyHC-IIa; C: MyHC-IIx mRNA concentrations were measured in control and IUGR semitendinosus and biceps femoris samples, normalized to s15 mRNA concentrations and are expressed as amount relative to controls (means ± SE). *Differences (P < 0.05) between control and IUGR groups within each muscle.
