1. Pittsburgh Vascular Institute, UPMC Shadyside, Pittsburgh, Pa (W.A.T.); Shiga Medical Center, Moriyama City, Japan (H.T.); Asan Medical Center, Seoul, Korea (S.-J.P.); St Antonius Ziekenhuis, Nieuwegein, Netherlands (T.P.); Kokura Memorial Hospital, Kitakyushu, Japan (M.N.); National Toyohashi Higashi Hospital, Toyohashi, Japan (T.S.); Centro Cuore Columbus, Milano, Italy (A.C.); Hospital Universitario San Carlos, Madrid, Spain (C.M.); Mayo Clinic, Rochester, Minn (D.R.H.); Beth Israel Deaconess...