1. Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
2. Northwestern University Feinberg School of Medicine, Chicago, Illinois
3. Department of Pathology, Loyola University Chicago, Maywood, Illinois
4. Brooke Army Medical Center, San Antonio, Texas
5. Division of Endocrinology, Metabolism, and Nutrition, Department of Medicine, Duke University Medical Center, Durham, North Carolina
6. Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina
7. Jesse Brown VA Medical Center, Chicago, Illinois