Fig. 2

Box-and-whisker-plots showing the dose parameters of the targets (a, b) and the organs at risk (c-f) of all treatment plans sorted by the treatment planning strategies (S1)-(S4). Dose constraints are marked with dashed lines, and statistically significant findings are listed in the Additional file 3 (Abbreviations: Dmean: mean dose; Dmax: maximum dose; VxGy: volume receiving x-Gy; D2%: near dose maximum, dose received by 2% of the volume; CI: conformity index; HI: homogeneity index)