1 Department of Cardiology, AHEPA University Hospital, St. Kiriakidi 1, Thessaloniki 54637, Greece.
2 Department of Cardiovascular Medicine, Mayo Clinic, 200 First Street S.W., Rochester, MN 55905, USA.
3 Department of Cardiology, Bloch Heart Rhythm Center @ University of Kansas Hospital, KU Cardiovascular Research Institute, 3901 Rainbow Blvd, Kansas City, KS 66160, USA.
4 Cardiovascular and Cell Sciences Research Institute, St. George's University of London, Cranmer Terrace, London SW190RE, UK.
5 Department of Medicine-Cardiology and Intensive Care, Peter Osypka Heart Center, Clinic Munich-Thalkirchen, Am Isarkanal 36, Munich 81379, Germany.