1. Inflammatory Bowel Disease Center, Division of Gastroenterology, University of California San Diego, La Jolla, California
2. VA San Diego Healthcare System, San Diego, California
3. Universidad Catolica de Chile, Santiago, Chile
4. Flow Cytometry Core Facility, La Jolla Institute of Allergy and Immunology, La Jolla, California
5. Flow Cytometry Core Facility, University of Virginia, Charlottesville, Virginia
6. Division of Comparative Pathology, Department of Pathology, University of California San Diego, La Jolla, California
7. Chiba University–UC San Diego Program in Mucosal Immunology, Allergy and Vaccines, San Diego, California