$\Dplus/\Dzero$ (top left panel) and $\Dstar/\Dzero$ (bottom left panel) ratios as a function of $\pt$ in central and semicentral \PbPb collisions compared to the results obtained from pp collisions . The right panels show the ratios in central \PbPb collisions compared to the predictions from the statistical hadronisation model (SHMc)  with a core--corona approach and the FastReso package  for resonance decays. Statistical (bars) and systematic (boxes) uncertainties are shown.