1. Department of Anesthesiology and Reanimation; Faculty of Medicine and Health Sciences; Sherbrooke University Hospital; Sherbrooke Québec Canada
2. Department of Critical Care; Intensive Care Unit; University Hospital, Faculty of Medicine; Universidad de la Republica Montevideo Uruguay
3. Department of Critical Care Medicine; Sunnybrook Health Sciences Centre; Interdepartmental Division of Critical Care Medicine; University of Toronto; Toronto Ontario Canada
4. Department of Intensive Care Medicine; Faculty of Medicine and Health Sciences; Sherbrooke University Hospital; Sherbrooke Québec Canada
5. Department of Intensive Care Medicine; University Hospital Rheinisch-Westfälische Technische Hochschule Aachen; Aachen Germany
6. Clinical Evaluation Research Unit; Kingston General Hospital; Kingston Ontario Canada and Department of Critical Care, Queen's University, Kingston, Ontario, Canada