1. Clinic of Internal Medicine II, Department of Cardiology; Paracelsus Medical University; Muellner Hauptstrasse 48 A-5020 Salzburg Austria
2. Department of Internal Medicine; Oberndorf Hospital; Salzburg Austria
3. Clinic of Internal Medicine III, Department of Oncology; Paracelsus Medical University; Salzburg Austria
4. Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty; University of Düsseldorf; Düsseldorf Germany
5. Clinic of Cardiac Surgery; Paracelsus Medical University; Salzburg Austria