1 Department of Intensive Care Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.
2 Dipartimento di Scienze Mediche e Chirurgiche (DIMEC), Alma Mater Studiorum-Università di Bologna, IRCCS Policlinico di Sant'Orsola, Anesthesia and Intensive Care Medicine, Bologna, Italy.
3 Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, ON, Canada. laurent.brochard@unityhealth.to.
4 Interdepartmental Division of Critical Care, University of Toronto, Toronto, Canada. laurent.brochard@unityhealth.to.