Hussein D Kanji1, Demetrios Sirounis2, John H Boyd3. 1. Department of Critical Care Medicine, University of British Columbia; Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. 2. Critical Care Research Laboratories, Centre for Heart Lung Innovation at St. Paul's Hospital University of British Columbia, Vancouver, BC, Canada; Department of Critical Care Medicine, University of British Columbia. 3. Critical Care Research Laboratories, Centre for Heart Lung Innovation at St. Paul's Hospital University of British Columbia, Vancouver, BC, Canada; Department of Critical Care Medicine, University of British Columbia; Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada. Electronic address: John.Boyd@hli.ubc.ca.