1 Division of Vascular and Interventional Radiology, Department of Diagnostic Radiology and Nuclear Medicine, Creighton University School of Medicine, Baltimore, Maryland.
2 Touro College of Osteopathic Medicine, New York City, New York.
3 Division of Vascular and Interventional Radiology, Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland.
4 Division of Vascular and Interventional Radiology, University of Chicago Medicine, Chicago, Illinois.