Hematoxylin and eosin (H&E)-stained cross-sections of lateral gastrocnemii (LG) muscles from an animal in the stimulation (A), no stimulation (B), no cell (C), and uninjured (D) groups. Median (25th, 75th percentile) percentage of reinnervated muscles fibers (E) and reinnervated muscle fiber areas (F) for the stimulation, no stimulation, and no cells groups. Statistical significance is shown with asterisk *p<0.05; ***p<0.001.