1. Department of Cardiothoracic and Vascular Surgery; Deutsches Herzzentrum Berlin; Germany
2. Clinic for Cardiovascular Surgery; University Heart Center; Zurich Switzerland
3. Clinic for Cardiology; University Heart Center; Zurich Switzerland
4. Epidemiology; Biostatistics and Prevention Institute; Department of Biostatistics; University of Zurich; Zurich Switzerland
5. Department of Cardiovascular Surgery; University Heart Center Freiburg-Bad Krozingen; Freiburg Germany
6. Sensory-Motor Systems Lab; ETH; Zurich Switzerland
7. University Hospital Balgrist; University of Zurich; Zurich Switzerland