1. Department of Critical Care, Intensive Care Unit-Hospital de Clínicas (University Hospital), Faculty of Medicine, Universidad de la República (UDELAR), Montevideo, Uruguay
2. Department of Anesthesia and Reanimation, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke–Hôpital Fleurimont, Québec, Canada
3. Clinical Evaluation Research Unit (CERU), Department of Medicine and Department of Community Health & Epidemiology, Kingston General Hospital, Kingston, Ontario, Canada