1. Department of Medical ImagingAnn & Robert H. Lurie Children's Hospital of ChicagoChicago Illinois USA
2. Department of RadiologyFeinberg School of Medicine, Northwestern UniversityChicago Illinois USA
3. Division of EndocrinologyMetabolism and Molecular Medicine, Feinberg School of Medicine, Northwestern UniversityChicago Illinois USA
4. Department of Biostatistics and EpidemiologyCincinnati Children's Hospital Medical CenterCincinnati Ohio USA
5. Northwestern Comprehensive Center on ObesityFeinberg School of Medicine, Northwestern UniversityChicago Illinois USA