Fig. 4From: Simultaneous integrated boost (SIB) to dominant intra-prostatic lesions during extreme hypofractionation for prostate cancer: the impact of rectal spacersBox plots showing OARs a rectum, b bladder and c urethra and urethra_PRV doses achieved for pre- and post-spacer plans. The median values are indicated by the central line within the box, and the edges of the box represent the inter-quartiles range, the minimum, maximum values (excluding outliers) are represented by the whiskers, and the outliers are plotted as individual points. p values < 0.05 are considered significantBack to article page