1. Diabetes Center, Massachusetts General Hospital, Boston, Massachusetts
2. University of North Carolina School of Medicine, Chapel Hill, North Carolina
3. Clinical Center for Research Excellence, Charles R. Drew University, Los Angeles, California
4. Department of Internal Medicine, University of Pisa, Pisa, Italy
5. Diabetes Trials Unit, Oxford Centre for Diabetes, Endocrinology and Metabolism, Oxford University, Oxford, U.K.
6. Department of Internal Medicine and Yale Center for Clinical Investigation, Yale University School of Medicine, New Haven, Connecticut
7. Samuel Lunenfeld Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada