1. From the Unit on Growth and Obesity, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, MD (MT-K, JCH, KA, LBS, KMC, LEW, CE, LMR, CAR, and JAY); Uniformed Services University of the Health Sciences, Bethesda, MD (MT-K, LBS, KMC, LEW,