1 Seymour, Paul, and Gloria Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA.
2 Seymour, Paul, and Gloria Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA. msm10@cumc.columbia.edu.
3 Department of Radiology, Columbia University Irving Medical Center, New York Presbyterian Hospital, New York, NY, USA.