| Affiliation: | 1. Division of Vascular and Endovascular Surgery, University of Arizona Medical Center, Tucson, Ariz;2. Division of Vascular Surgery and Endovascular Therapy, Northside Hospital Heart and Vascular Institute, Atlanta, Ga;3. Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester, Minn;1. Division of Vascular Surgery, Rhode Island Hospital, Warren Alpert School of Medicine, Brown University, Providence, RI;2. Division of Vascular and Endovascular Surgery, Boston University School of Medicine and Boston Medical Center, Boston, Mass;3. Department of Biostatistics, Boston University School of Medicine, Boston, Mass |
