1. Keenan Research Centre and Li Ka Shing Institute, Department of Critical Care, St. Michael’s Hospital, Toronto, Ontario, Canada
2. Interdepartmental Division of Critical Care Medicine, and
3. Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
4. Division of Respirology and Critical Care Medicine, Toronto General Hospital, Toronto, Ontario, Canada
5. Istituto di Anestesia e Rianimazione, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
6. Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, and
7. Division of Respiratory Diseases and Tuberculosis, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
8. Critical Care Department, King Saud Medical City, Riyadh, Saudi Arabia
9. Anestesia e Rianimazione, Ospedali Riuniti di Foggia, Foggia, Italy; and
10. Emergency Department, General Hospital of Annecy, Annecy, France