1. Division of Endocrinology, Diabetes and Metabolism, University of Colorado School of Medicine, Aurora, Colorado
2. Division of Diabetes and Endocrinology, Department of Medicine, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois
3. Division of Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Baltimore, Maryland
4. Section of Endocrinology, Yale University School of Medicine, New Haven, Connecticut