Effect on the VSF law of including either a fraction of molecular gas of 30% (yellow pentagons) or the correction for the dust obscuration using 24 μm emission (green triangles). For comparison, the volume densities of our sample of dwarf galaxies from our fiducial analysis are shown by the magenta diamonds and are the same as in Fig. 3. The light blue points are from B19a and the red line is the best-fit VSF law obtained in this work.