Urinary VEGF fold change in patients with and without grade 3 hematologic toxicity: Urinary VEGF fold change (pg/mg) between baseline and end of radiation for patients who did not (n=5) and did (n=3) develop grade 3 or 4 hematologic toxicity during treatment. Median values for those who did not develop toxicity were significantly different from those who did develop toxicity (0.8 pg/mg range [0.4,2.2] vs. 5.0 pg/mg range [4.1, 17.8], p = 0.037, Wilcoxon Rank Sum exact test). Wilcoxon scores are plotted, which are based on the ranks of the original data.