1. Penn Cardiovascular Institute, Division of Cardiovascular Medicine Hospital of the University of Pennsylvania Philadelphia PA 19104 USA
2. Center for Magnetic Resonance and Optical Imaging, Department of Radiology, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
3. Proteomics Core The Children's Hospital of Philadelphia Philadelphia PA USA
4. Penn Acute Care Research Collaboration, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
5. Cardiovascular Imaging Section, Department of Radiology University of Pennsylvania Philadelphia PA USA
6. Children's Hospital of Philadelphia Research Institute Philadelphia PA USA
7. Center for Translational Medicine Lewis Katz School of Medicine at Temple University Philadelphia PA USA
8. Department of Human Nutrition, Foods, and Exercise Virginia Tech Blacksburg VA USA
9. Division of Endocrinology and Diabetes The Children's Hospital of Philadelphia Philadelphia PA USA
10. University of Pennsylvania Philadelphia PA USA
11. Laboratory for Structural, Physiologic and Functional Imaging, Department of Radiology, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA
12. Departments of Kinesiology, Anatomy, and Physiology Kansas State University Manhattan KS USA