1. Department of Pediatrics (A.A.P., S.S., L.E.L.K., D.D.D.L.), Division of Endocrinology/Diabetes, The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania 19104
2. Department of Pediatrics (L.E.L.K., D.D.D.L.), University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104
3. Biostatistics and Data Management Core (P.R.G.), The Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania 19104