1. Department of Radiology, NYU Langone Medical Center, 660 First Ave, 3rd Fl, New York, NY 10016.
2. Department of Radiology, Albany Medical College, Albany, NY.
3. Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY.
4. Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA.