1. Division of Endocrinology, Department of Medicine, Children’s Nutrition Research Center (J.S., R.V.S., A.B., M.D.S.), Houston, Texas 77030
2. Department of Pediatrics, Baylor College of Medicine (R.V.S., K.E., P.J.R., F.J.), Houston, Texas 77030
3. Ben Taub General Hospital (A.B., M.D.S.), Houston, Texas 77030