| Affiliation: | 1. Department of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre, Boston, MA, USA;2. Department of Surgery, Massachusetts General Hospital, Boston, MA, USA;3. Department of Surgery, George Washington University, Washington, DC, USA;4. Department of Surgery, St. Elizabeth''s Medical Centre, Boston, MA, USA;5. Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, NH, USA;6. Department of Medicine, Beth Israel Deaconess Medical Centre, Boston, MA, USA;7. Department of Health Care Policy, Harvard Medical School, Boston, MA, USA |
