1. Division of Cardiology, Columbia University Medical Center, New York, NY (M.I.B., A.M., V.G.N., R.T.H., S.K.K., G.T.S., N.U., D.B.).
2. Department of Internal Medicine, Justus Liebig Universitat Giessen, Germany (K.T.).
3. Department of Interventional Cardiology, Thoraxcenter, Erasmus University Medical Center, Rotterdam, the Netherlands (M.B.B., A.J.M.V.D.E., N.M.V.M.).
4. Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (W.K.C.).
5. Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (S.H.).
6. Division of Cardiology, Medical University of South Carolina, Charleston (R.J.T.).
7. Division of Cardiology, Heart Center, University of Leipzig, Germany (P.L., K.-P.R., K.-P.K.).
8. Section of Cardiology, Houston Methodist DeBakey Heart and Vascular Center, TX (S.F.N.).
9. Cardiovascular Institute, Alleghany Health Network, Pittsburgh, PA (M.K.K.).
10. Cardiovascular Center and Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA (N.K.K.).
11. Division of Pediatric Cardiology, University of Minnesota Masonic Children’s Hospital, Minneapolis (G.H.).
12. Division of Cardiology, Mayo Clinic, Rochester, MN (M.S.).
13. Division of Anesthesiology, Yale University School of Medicine, New Haven, CT (P.M.H.).
14. Cardiovascular Research Foundation, New York, NY (D.B.).