1. Department of Nephrology and Endocrinology, Ernst von Bergmann Hospital, Potsdam, Germany
2. University Clinic for Cardiology and Angiology, Otto-von-Guericke University Magdeburg, Germany
3. Department of Intensive Care, The Austin Hospital, Melbourne, Australia
4. Centre for Integrated Critical Care, The University of Melbourne, Melbourne, Australia
5. Medical Faculty, Otto-von-Guericke University Magdeburg, Germany
6. Diamedikum, Potsdam, Germany
7. Department of Nephrology and Hypertension, Hannover Medical School, Hannover, Germany
8. Department of Nephrology, Central Clinic Bad Berka, Bad Berka, Germany