1. Department of Medicine, Isituto Scientifico San Raffaele, Milan, Italy, and the Diabetes Research Institute, Munich, Germany
2. Department of Pathology, University of Florida, Gainesville, Florida
3. Barbara Davis Center for Childhood Diabetes, University of Colorado Health Sciences Center, Denver, Colorado
4. Jackson Laboratory, Bar Harbor, Maine
5. Autoimmunity and Transplantation Division, the Walter and Eliza Hall Institute of Medical Research, Victoria, Australia
6. Department of Microbiology & Immunology, University of Western Ontario, London, Canada