Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada. Electronic address: rewa@ualberta.ca. Department of Critical Care Medicine, University of Alberta, Edmonton, AB, Canada. Research Facilitation, Analytics (DIMR), Alberta Health Services, Edmonton, AB, Canada. Department of Nephrology, University of Toronto, Toronto, ON, Canada. Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, ON, Canada. Department of Medicine, Medical University of South Carolina, Charleston, SC, USA. Department of Nephrology, University of California San Francisco, San Francisco, CA, USA. Section of Nephrology Department of Medicine, University of Chicago, Chicago, IL, USA. Department of Medicine, University of California - San Diego, San Diego, CA, USA.