1. Department of Internal Medicine II; Medical University of Vienna; Vienna Austria
2. Department of Internal Medicine I - Cardiology; Linz General Hospital; Johannes Kepler University School of Medicine; Linz Austria
3. Third Medical Department, Cardiology and Intensive Care Medicine; Wilhelminenhospital; Vienna Austria
4. Ludwig Boltzmann Cluster for Cardiovascular Research; Vienna Austria
5. Core Facilities; Medical University of Vienna; Vienna Austria