Erratum for Neutrophil-derived APRIL concentrated in tumor lesions by proteoglycans correlates with human B-cell lymphoma aggressiveness

In the article by Schwaller et al entitled “Neutrophil-derived APRIL concen-trated in tumor lesions by proteoglycans correlates with human B-cell lymphoma aggressiveness,” which appeared in the January 1, 2007, issue of Blood (Volume 109:331–338), Figure 7 contains an incorrect P value. The figure should read “P = .02.”