Footnote

As a result of an editing error, the name of the postdoctoral observance was wrong in the print version of this article. It has been corrected in this online version. 

Robert Barrett (Robert.Barrett@cshs.org) is a postdoctoral scholar in the Inflammatory Bowel & Immunobiology Research Institute in Cedars Sinai Medical Center.

Kate M. Sleeth (ksleeth@coh.org) is a postdoctoral fellow in the department of immunology at the Beckman Research Institute at the City of Hope.