Di Stefano, Salvatore Di Toro, Dario, Electrophysiology Division, Argerich Hospital; and CEMIC, Buenos Aires, Argentina Diachyshyn, Marta Dianat, Saied Diarte, Jose Antonio Diarte, José A. Díaz, Alejandro, Centro de Investigaciones Cardiovasculares. Facultad de Ciencias Medicas. UNLP. La Plata Díaz, Alejandro Díaz Castro, Oscar, Hospital Montecelo Díaz-Fernández, Jose F. Dietrich, Peter Laurenz Dietz, Rainer Dietze, Thomas, Dept. of Cardiology Klinikum Kassel Díez, Javier Diez, Mirta, Heart Failure Section, Instituto Cardiovascular de Buenos Aires, Argentina Digby, Geneviève, Division of Cardiology, Kingston General Hospital, Queen’s University, Kingston, Ontario, Canada Dikbas, Oguz Diletti, Roberto, Thoraxcenter, Rotterdam Dimitropoulos, Stathis Dimitrow, Paweł Petkow Dindar, Aygun Dindar, Ismet Ding, Daixin Ding, Ding Ding, Fenghua