1. From the Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD (L.G.T, R.D.B.); Division of Electrocardiology, Medical University of Lodz, Lodz, Poland (I.C.); Division of Cardiology, University of Rochester Medical Center, Rochester, NY (S.M., J-P.C., W.Z.); Cardiology Service, Puerta del Mar University Hospital, Cadiz (R.V.); Hospital Universitari Germans Trias i Pujol, Badalona, Spain (A.B-G.); Whiting School of Engineering, Johns Hopkins...