1. Department of Cardiology, Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY (P.K., S.F., S. Khera).
2. Department of Cardiology, Austin Heart, TX (F.Z.).
3. Department of Vascular Surgery, Texas Heart Institute, Houston (Z.K.).
4. Department of Cardiology, Wellmont Holston Valley Medical Center, Kingsport, TN (C.M.).
5. Department of Cardiology, Cleveland Clinic, OH (S. Kapadia).
6. Department of Vascular Surgery, River City Clinical Research, Jacksonville, FL (E.M.).
7. Department of Cardiology, Columbia University, New York, NY (T.N.).
8. Department of Vascular Surgery, Vascular Institute of the Rockies, Denver, CO (T.G.).
9. Department of Cardiology, Swedish Medical Center, Seattle, WA (M.Z.).
10. Department of Vascular Surgery, University of Iowa, Iowa City (M.S.).
11. New York Presbyterian, Columbia University, New York, NY (V.I.P.).
12. North Central Heart, Sioux Falls, SD (J.M.B.).
13. Department of Cardiology, Lankenau Medical Center, Wynnewood, PA (P.C.).
14. Department of Vascular Surgery, Beth Israel Deaconess Medical Center, Boston, MA (M.L. Schermerhorn).
15. Department of Vascular Surgery, University of South Florida, Tampa (M.L. Shames).
16. Department of Vascular Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ (S.R.).
17. Department of Vascular Surgery, Sentara Vascular Specialists, Norfolk, VA (J.P.).
18. Department of Vascular Surgery, INTEGRIS Baptist Medical Center, Oklahoma City, OK (C.E.).
19. Department of Vascular Surgery, Cardiothoracic and Vascular Surgeons, Austin, TX (M.F.).