1. Division of Endocrinology (S.H.T.), Denver, Colorado 80262
2. Department of Pediatrics, The Children’s Hospital, Division of Biostatistics (B.W.J.), Denver, Colorado 80262
3. Department of Medicine (R.H.E.), The Center for Human Nutrition and Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Health Sciences Center, Denver, Colorado 80262