1. Division of Interventional Radiology, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA
2. Massachusetts General Physicians Organization, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
3. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
4. Paul and Phyllis Fireman Vascular Center, Massachusetts General Hospital, Boston, MA, USA
5. Division of Vascular and Endovascular surgery, Paul and Phyllis Fireman Vascular Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
6. Cardiology Division, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA