1. From the Department of Cardiology, MedStar Washington Hospital Center, Washington, DC (R.W., H.K.); CLI Foundation, Ettore Sansavini Health Science Foundation, Rome, Italy (F.P., L.D.V.); Department of Cardiology, Erasmus MC, Thoraxcenter, Rotterdam, The Netherlands (N.B.); Städtische Kliniken Neuss, Lukaskrankenhaus GmbH, Medical Clinic I, Neuss, Germany (M.H., H.D.); Department of Cardiology, West German Heart Center Essen, Essen, Germany (D.B., R.E.); Department of Cardiology, Luzerner...