1. Division of Endocrinology; Boston Children's Hospital, Harvard Medical School; Boston Massachusetts
2. Division of Endocrinology; Cincinnati Children's Hospital Medical Center and University of Cincinnati; Cincinnati Ohio
3. Division of Cardiology; Cincinnati Children's Hospital Medical Center and University of Cincinnati; Cincinnati Ohio
4. Department of Cardiology; Boston Children's Hospital, Harvard Medical School; Boston Massachusetts
5. Barbara Davis Center for Childhood Diabetes; University of Colorado School of Medicine; Aurora Colorado