Fig. 1

Box plot of the mean absolute doses for a all pertinent OARs and for b PTV65-GTV in each of the study groups (n = 20). The mean value is indicated by the red square symbol, the median value by the central horizontal line, the interquartile range is represented by the box, and the outliers are indicated by the asterisks. The dose constraints are highlighted in a by the red horizontal dotted line