1. University of Virginia Health System, Charlottesville, Virginia
2. Joslin Diabetes Center, One Joslin Place, Boston, Massachusetts
3. University of Chicago, Chicago, Illinois
4. Royal Infirmary, Edinburgh, Scotland
5. University of Louisville, Louisville, Kentucky
6. Washington University, St. Louis, Missouri
7. SUNY Upstate Medical University, Syracuse, New York
8. University Hospital, Basel, Switzerland
9. Research Institute of the Diabetes Academy, Mergentheim, Germany.