1. Department of Radiology, University of California, Davis Medical Center, 4860 Y St, Ste 3100, Sacramento, CA 95817.
2. Department of Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX.
3. Department of Radiology, Michigan Medicine, Ann Arbor, MI.
4. Cleveland Clinic Imaging Institute, Glickman Urological and Kidney Institute, Cleveland, OH.
5. Department of Radiology, University of Ottawa, Ottawa, ON, Canada.
6. Department of Radiology, Warren Alpert School of Medicine, Brown University, Providence, RI.