1. Type 1 Diabetes Center, La Jolla Institute for Allergy and Immunology, La Jolla, CA
2. Institute of Diabetes Research, Helmholtz Diabetes Center, Helmholtz Zentrum München, Neuherberg, Germany
3. Department of Pathology, University of Florida, Gainesville, FL
4. Novo Nordisk Diabetes Research & Development Center, Seattle, WA