1. Barbara Davis Center for Childhood Diabetes (J.K.S.-B., G.L.K., M.R.), University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80045
2. Departments of Preventive Medicine and Biometrics (D.D., L.G.O., J.E.H.), University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80045
3. Department of Medicine (J.E.), University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80045
4. Department of George Washington University Medical Center (J.E.), Washington, D.C. 20037