Appendix 2—figure 33. In the FHN model, changes in anagen length (solid line, $T_{PA}$), refractory telogen length (dashed line, $T_R$), competent telogen length (dash-dot line, $T_C$) to the positive feedback in the activator pathway (${\alpha }_1$) under different values of activator ($I$) and inhibitor ($J$) production rates.

DOI: http://dx.doi.org/10.7554/eLife.22772.075