1. Department of Radiology, Nationwide Children's Hospital, ED Bldg, 4th Fl, 700 Childrens Dr, Columbus, OH 43205.
2. Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX.
3. Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, ON, Canada.
4. Department of Medical Imaging, University of Toronto, Toronto, ON, Canada.
5. Department of Radiology, Cincinnati Children's Hospital, Cincinnati, OH.
6. Department of Radiology, University of Cincinnati College of Medicine, Cincinnati, OH.
7. Department of Radiology, Emory University and Children's Healthcare of Atlanta, Atlanta, GA.
8. Department of Radiology, University of Pittsburgh School of Medicine, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA.
9. Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO.
10. Department of Pediatrics, Biostatistics Core, Emory University, Atlanta, GA.
11. Present affiliation: General Dynamics Information Technology, Falls Church, VA.