1. Department of Radiology, Weill Cornell Medical College, NewYork-Presbyterian Hospital, 525 E 68th St, New York, NY 10065.
2. Department of Healthcare Policy and Research, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY.
3. Department of Neurology, Weill Cornell Medical College, NewYork-Presbyterian Hospital, New York, NY.
4. Department of Radiology, Northwell Health, Manhasset, NY.