1 Section of Invasive Cardiology and Electrophysiology, Department of Internal medicine I, University Medical Center Mannheim, Theodor-Kutzer Ufer 1-3, 68167 Mannheim, Germany.
2 Section of Invasive Cardiology and Electrophysiology, Department of Internal medicine I, University Medical Center Mannheim, Theodor-Kutzer Ufer 1-3, 68167 Mannheim, Germany. Electronic address: ibrahim.akin@umm.de.