Pretreatment gene expression in nonresponders (NR, n = 5) versus responders (R, n = 14) of neutrophil signature. Boxplots represent the median, 25th and 75th percentiles; whiskers extend from the hinge to the largest value below 1.5 * IQR from the hinge. The difference between NR and R was tested using a two-sided Wilcoxon Rank-sum test.