1. Inova Heart and Vascular Institute, Inova Alexandria Hospital, VA (A.J.C.).
2. Thrombosis and Atherosclerosis Research Institute (C.K.), McMaster University, Hamilton, ON, Canada.
3. Juravinski Hospital and Cancer Centre, Hamilton, ON, Canada (C.K., C.-S.G., J.A.J.).
4. Department of Oncology (C.-S.G., J.A.J.), McMaster University, Hamilton, ON, Canada.
5. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA (S.Z.G.).
6. Jewish General Hospital, Lady Davis Institute, Center for Clinical Epidemiology, Montreal, QC, Canada (S.R.K.).
7. Newton-Wellesley Hospital, and Harvard Medical School, Boston, MA (M.R.J.).
8. St. Joseph’s Hospital, Orange, CA (M.K.R.).
9. National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD (A.L.K.).
10. Department of Medicine, Temple University Hospital, Philadelphia, PA (R.B.).
11. Department of Radiology, Medical College of Wisconsin, Milwaukee (P.P.).
12. Division of Vascular Surgery, University of Iowa, Iowa City (M.S.).
13. Vascular and Interventional Professionals LLC, Hinsdale, IL (M.J.S.).
14. Department of Radiology, University of Michigan, Ann Arbor (W.E.S.).
15. Toledo Radiological Associates, Vascular & Interventional Radiology, OH (Z.A.).
16. Department of Radiology, Stanford University, CA (L.V.H.).
17. Department of Medicine, Duke University, Durham, NC (M.K.).
18. Mallinckrodt Institute of Radiology, Washington University in St. Louis, MO (S.V.).