(Any NV): Plot of mean (thick line) and 95% mean confidence interval (bars) for cumulative DVHs of patients experiencing any nausea/vomiting events during therapy (red) compared to those without said symptoms (blue), with DVH binned in 1-Gy increments. Broadly, if 95% confidence intervals do not overlap mean lines, for each bin there is a difference at the p<0.05 level; if error bars do not overlap entirely overlap, the p-value is <0.01 for the specified 1-Gy dose bin without multiple comparison correction. DVC (Dorsal vagal complex), AP (Area postrema), NA (Nucleus ambiguus) SN (Solitary Nucleus), BS (Brainstem), FV (Forth Ventricle), NF (Nasopharyngeal mucosa), Cerebellum, Mucosa (Oropharyngeal mucosa), Pons (Pons), WB (Whole brain)