Rinaldo Bellomo1,2, Ian Baldwin1, Claudio Ronco1,2,3,4,5,6, John A Kellum6. 1. Department of Intensive Care, Austin Hospital, Heidelberg, Melbourne, VIC, Australia. 2. Centre for Integrated Critical Care, School of Medicine, University of Melbourne, Melbourne, VIC, Australia. 3. Chair of Nephrology, Department of Medicine, University of Padova, Padua, Italy. 4. International Renal Research Institute of Vicenza (IRRIV), Vicenza, Italy. 5. Department of Nephrology, San Bortolo Hospital, Vicenza, Italy. 6. Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh, Pittsburgh, PA.