410405.fig.004a
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410405.fig.004b
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410405.fig.004c
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Figure 4: Quantitative immunoelectron microscopy of satellite cell nuclei of biceps and quadriceps muscles from adult and old rats; labeling density (gold grains/ 𝜇 m 2 ) of some RNA processing factors in the interchromatin space (mean ± SE). Asterisks show significantly different values.