Fig. 3. The number of RFs and clusters are decreased in micro-dystrophin-transgenic mice. (A) The maximal number of RFs. (B) The maximal number of revertant clusters containing more than one RF. (C) The maximal number of RFs in one cluster. Values are mean ± s.e.m. for 410 TA muscles per group. *Significant difference (P<0.05) from mdx muscles of the same age. 5W, 5 weeks; 10W, 10 weeks.