[1] Tufts Med Ctr, Ctr Cardiovasc, Boston, MA 02111 USA
[2] Univ Alabama Birmingham, Div Vasc Surg & Endovasc Therapy, Birmingham, AL USA
[3] Birmingham Vet Adm Med Ctr, Birmingham, AL USA
[4] Univ Michigan, Ann Arbor, MI 48109 USA
[5] Indiana Univ Sch Med, IU Hlth Care Syst, Indianapolis, IN 46202 USA
[6] Lund Univ, S-22100 Lund, Sweden
[7] Univ Illinois Hosp & Hlth Sci, Chicago, IL USA
[8] Southcoast Healthcare Syst, Cardiovasc Care Ctr, Dept Vasc Surg, Fall River, MA USA
[9] Uniformed Serv Univ Hlth Sci, F Edward Hebert Sch Med, Bethesda, MD 20814 USA
[10] Mayo Clin, Gonda Vasc Ctr, Rochester, MN USA
[11] Mayo Clin, Div Vasc & Endovasc Surg, Rochester, MN USA
[12] Jobst Vasc Inst, Toledo, OH USA
[13] Univ N Carolina, Chapel Hill, NC USA
[14] Portland VA Med Ctr, Portland, OR USA
[15] Oregon Hlth & Sci Univ, Portland, OR USA
[16] Mayo Clin, Div Prevent Med, Rochester, MN USA
[17] Med Univ Vienna, Vienna, Austria
[18] Univ Texas Hlth Sci Ctr San Antonio, San Antonio, TX 78229 USA
[19] Harvard Univ, Sch Med, Boston, MA USA
[20] Vet Adm Boston Healthcare Syst, Boston, MA USA
[21] Brigham & Womens Hosp, Boston, MA 02115 USA
[22] Rane Ctr, Jackson, MS USA
[23] Duke Univ, Med Ctr, Div Vasc Surg, Durham, NC USA
[24] Massachusetts Gen Hosp, Div Vasc & Endovasc Surg, Boston, MA 02114 USA