1. Department of Anesthesiology, Intensive Care and Pain Medicine, University of Münster, Münster, Germany
2. Department of Anesthesiology and Critical Care Medicine, Heinrich-Heine University of Düsseldorf, Düsseldorf, Germany
3. Institute of Biostatistics and Clinical Research, University of Münster, Münster, Germany
4. Department of Nephrology, University Hospital Essen, Essen, Germany
5. Department of Anesthesiology and Intensive Care Medicine, University Hospital Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
6. Department of Intensive Care Medicine, University of Aachen, Aachen, Germany
7. Department of Anesthesiology and Intensive Care Medicine, University Hospital Augsburg, Augsburg, Germany
8. University Hospital Bonn, Department of Anesthesiology and Intensive Care Medicine, Bonn, Germany
9. University Medical Center Hamburg-Eppendorf, Department of Intensive Care, Hamburg, Germany
10. Department of Nephrology and Medical Intensive Care, Charité–Universitätsmedizin Berlin, Berlin, Germany
11. Universitätsmedizin Mainz, Department of Anesthesiology, Mainz, Germany
12. Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Frankfurt, Frankfurt, Germany
13. Department of Anesthesiology, University Hospital Würzburg, Würzburg, Germany
14. Department of Anesthesiology, Intensive Care and Pain Medicine, Helios Klinikum Bad Saarow, Bad Saarow, Germany
15. Department of Anesthesiology, University Medical Center Göttingen, Göttingen, Germany
16. Department of Anesthesiology and Intensive Care Medicine, University Hospital Jena, Jena, Germany
17. Department of Anesthesiology and Intensive Care Medicine, University Hospital Leipzig, Leipzig, Germany
18. Department of Critical Care Medicine, Faculty of Medicine and Dentistry, University of Alberta and Alberta Health Services, Edmonton, Alberta, Canada
19. Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania