[1] Brigham and Women's Hospital, Boston, MA
[2] University of Pennsylvania, Philadelphia, PA
[3] Cleveland Clinic, Cleveland, OH
[4] University of Wisconsin, Madison, WI
[5] American College of Cardiology, Washington, DC
[6] Massachusetts General Hospital, Boston, MA
[7] Emory University School of Medicine, Atlanta, GA
[8] Vascular Associates, Grand Rapids, MI
[9] Society of Vascular Surgeons, Chicago, IL
[10] Yale University School of Medicine, New Haven, CT
[11] Johns Hopkins Bayview Medical Center, Baltimore, MD
[12] University of Chicago, Chicago, IL