1. Division of Interventional Radiology, Department of Radiology, MedStar Georgetown University Hospital, Washington, District of Columbia, USA

2. Dotter Department of Interventional Radiology, Oregon Health and Science University, Oregon, USA

3. Division of Interventional Radiology, Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA

4. Institute for Technology Assessment, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA

5. Division of Nephrology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA

6. Liver Center and Division of Gastrointestinal Medicine, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA

7. Division of Interventional Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA