1. Duke University Medical Center, Department of Radiology , Durham, NC , USA
2. University of Pennsylvania, Department of Radiology , Philadelphia, PA , USA
3. Beth Israel Deaconess Medical Center, Department of Radiology , Boston, MA , USA
4. Massachusetts General Hospital, Department of Radiology , Boston, MA , USA
5. University of Rochester Medical Center, Department of Imaging Sciences , Rochester, NY , USA
6. Einstein Health , Philadelphia, PA , USA
7. Case Western Reserve University, Department of Radiology , Cleveland, OH , USA
8. Memorial Sloan Kettering Cancer Center , New York City, NY , USA