1. Department of Diagnostic Radiology, Oregon Health & Science University Doernbecher Children's Hospital, 3181 SW Sam Jackson Park Rd, Portland, OR 97239-3098.
2. Department of Radiology, Boston Children's Hospital, Boston, MA.
3. Department of Radiology, Nicklaus Children's Hospital, Miami, FL.
4. Department of Radiology, Duke University Medical Center, Durham, NC.
5. Department of Surgery, Medical College of Wisconsin, Milwaukee, WI.
6. Department of Radiology, Penn State Health Radiology, Penn State Children's Hospital, Hershey, PA.
7. Present affiliation: Department of Radiology, Nemours Children's Health, Wilmington, DE.
8. Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX.
9. Department of Radiology, Cincinnati Children's Hospital, University of Cincinnati College of Medicine, Cincinnati, OH.
10. Department of Medical Imaging, University of Arizona College of Medicine, Tucson, AZ.
11. Department of Emergency Medicine, University of Arizona College of Medicine, Tucson, AZ.