1. Augusta University at the Medical College of Georgia, Department of Radiology, Augusta, GA
2. Weill Cornell Medicine, Department of Radiology, New York, NY
3. Georgetown University School of Medicine, Department of Radiology, Washington, DC
4. Mayo Clinic, Department of Radiology, Rochester, MN
5. The University of Texas MD Anderson Cancer Center, Department of Radiology, Houston, TX
6. The George Washington University, Department of Radiology, Washington, DC