Vol. 200, No. 5, September 6, 2004. Pages 587–599.
Due to technical errors during the final production stages of this article, various symbols and special characters were improperly converted to standard text, resulting in erroneous terms appearing inconsistently throughout the original article as listed below.
CD41 should be CD4+ throughout
NF-kB should be NF-κB throughout
CD21low should be CD21low throughout
CD21high should be CD21high throughout
.15 yr should be >15 yr on page 596
59 end should be 5′ end in Reference 27
IgE1 should be IgE+ in Reference 61
The HTML and PDF versions of the article have been corrected.