CXCR2 and neoplasm: With regard to survival, CXCR2 WT mice had a higher correlation with the tumor weights (R2 = 0.22) than with spleen weights (R2 = 0.06) and ascites (R2 = 0.001) (Figure 7D,F), whereas CXCR2 cKO mice had similar correlations with the tumor weights (R2 = 0.14), spleen weights (R2 = 0.18), and ascites (R2 = 0.16), demonstrating survival durations which lasted days (Figure 7D,F).