1. Division of Cardiology; Department of Medicine II; Medical University of Vienna; Vienna Austria
2. 4th Medical Department; Hietzing Hospital; Medical University of Vienna; Vienna Austria
3. Division of Nephrology; Department of Medicine III; Medical University of Vienna; Vienna Austria
4. Division of Cardio-Thoracic-Vascular Anesthesia and Intensive Care Medicine; Department of Anesthesia; Medical University of Vienna; Vienna Austria
5. Division of Infectiology and Tropical Medicine; Department of Internal Medicine IV; KFJ Social-Medical Center South; Medical University of Vienna; Vienna Austria
6. Division of Cardiac Surgery; Department of Surgery; Medical University of Vienna; Vienna Austria
7. Complexity-Research; Research Institute for Complex Systems; Vienna Austria