1 Second Department of Cardiology, Hippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece. Electronic address: pakar15@hotmail.com.
2 Second Department of Cardiology, Hippokration General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece.
3 Univ. Bordeaux, INSERM, CRCTB, U 1045, IHU Liryc, Bordeaux, France; CHU de Bordeaux, Cardiac Arrhythmia Department, INSERM, U 1045, Bordeaux, France.
4 Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA.
5 Second Propedeutic Department of Internal Medicine, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, Greece.
6 Beth Israel Deaconess Medical Center and Boston VA Healthcare System, Harvard Medical School, Boston, MA, USA.