1. Section on Growth and Obesity, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
2. Office of the Clinical Director, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
3. Radiology and Imaging Sciences, Clinical Research Center, National Institutes of Health, Bethesda, MD, USA
4. Section on Heritable Disorders of Bone and Extracellular Matrix, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA