Fig. 5. Quantitative evaluation of the migration of graft myogenic cells into adjacent host muscle: results of four GFP to 0 experiments. In cross-sections through adjacent host and graft muscles, GFP-positive fibres in the host were counted. Numbers are given as a function of the distance from the graft. Averages (symbols) and highest and lowest counts (ends of bars) are given separately for proximal and distal sections (cf. Fig. 3 for additional explanations). Empty circles correspond to the experiment shown in Fig. 4. No emigration was observed in short-term experiments (filled symbols).