1. Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY
2. Departments of Medicine and Pediatrics, Johns Hopkins School of Medicine, Baltimore, MD
3. Diabetes Center, University of California, San Francisco, San Francisco, CA
4. Division of Metabolism, Endocrinology & Diabetes, University of Michigan, Ann Arbor, MI, and VA Ann Arbor Healthcare System, Ann Arbor, MI
5. Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center, Harvard Medical School, Boston, MA