1. Department of Nephrology and Intensive Care Medicine Charité University Medicine Berlin Germany
2. Department of Intensive Care Medicine, Inselspital Bern University Hospital Bern Switzerland
3. Department of Cardiology General and Teaching Hospital Celje Celje Slovenia
4. Faculty of Medicine University of Ljubljana Ljubljana Slovenia
5. Department of Internal Medicine General Hospital Murska Sobota Murska Sobota Slovenia
6. Deptartment of Cardiology, Inselspital Bern University Hospital Bern Switzerland
7. Center for Stroke Research Berlin Charité Universitätsmedizin Berlin Berlin Germany
8. Department of Cardiology Charité Universitätsmedizin Berlin Berlin Germany
9. Department of Cardiology and Center for Innovative Trials University of Göttingen Göttingen Germany