1. Type 1 Diabetes Center, the La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
2. Diabetes Unit, Department of Internal Medicine, Endocrine and Metabolic Sciences, and Biochemistry, University of Siena and Fondazione Umberto Di Mario organizzazione non lucrativa di utilità sociale–Toscana Life Science Park, Siena 53100, Italy
3. St Vincent’s Institute, Fitzroy 3065, Victoria, Australia
4. Department of Pathology, Immunology, and Laboratory Medicine, College of Medicine, University of Florida, Gainesville, FL 32610
5. Department of Immunohematology & Blood Transfusion, Leiden University Medical Centre, Leiden 2333 ZA, Netherlands