1. Neuroscience Graduate Program, University of Michigan, Ann Arbor, Michigan
2. Department of Surgery, University of Michigan, Ann Arbor, Michigan
3. Was Internal Medicine Research Unit, Pfizer Inc., Cambridge, Massachusetts
4. Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
5. Department of Diabetes and Hormone Diseases, Aarhus University Hospital, Aarhus, Denmark
6. Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark