1 Department of Internal Medicine III, Cardiology & Angiology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria.
2 Department of Internal Medicine III, Cardiology & Angiology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria. gerhard.poelzl@tirol-kliniken.at.