We would like the following collaborators to be searchable in PubMed for this Update.

The authors acknowledge and thank Dr. Andre Carlos Kajdacsy-Balla Amaral (Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada), Dr. John Basmaji (University of Western Ontario, London, Ontario, Canada), Dr. Jason Shahin (McGill University, Québec, Canada), Dr. Alain Mercat (Angers University Hospital, Angers, France), Dr. François Beloncle (Angers University Hospital, Angers, France), Dr. Gaëtan Beduneau (Rouen University Hospital, Rouen, France), Dr. Armand Mekontso Dessap (Henri Mondor University Hospital, Creteil, France), Dr. Guillaume Carteaux (Henri Mondor University Hospital, Creteil, France) Dr. Alexandre Demoule (Hôpital Universitaire Pitié-Salpêtrière and Sorbonne Université Médecine, Paris, France), Dr. Marie Lecronier (Hôpital Universitaire Pitié-Salpêtrière and Sorbonne Université Médecine, Paris, France), Dr. Martin Dres (Hôpital Universitaire Pitié-Salpêtrière and Sorbonne Université Médecine, Paris, France), Dr. Katerina Vaporidi (University Hospital of Heraklion, Voutes, Heraklion, Greece), Dr Eumorfia Kondili (University Hospital of Heraklion, Voutes, Heraklion, Greece), Dr. Vito Fanelli (Città della Salute e della Scienza Hospital – University of Turin, Italy), Dr. Savino Spadaro (University of Ferrara, Italy), Dr. Yaseen Arabi (King Abdulaziz Medical City, Kingdom of Saudi Arabia), Dr. Jordi Mancebo Cortes (Hospital Universitari Sant Pau, Barcelona, Spain), Dr. Juan Carlos Suárez Montero (Hospital Universitari Sant Pau, Barcelona, Spain), Dr. Indalecio Moran Chorro (Hospital Universitari Sant Pau, Barcelona, Spain), Dr. Núria Rodríguez Farre (Hospital Universitari Sant Pau, Barcelona, Spain), Dr. François Lellouche (Centre de recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec City, Québec, Canada), Dr. Pablo O. Rodriguez (Instituto Universitario CEMIC, Buenos Aires, Argentina), Dr. Jeff Singh (University Health Network, Toronto, Ontario, Canada), Dr. M. Elizabeth Wilcox (University Health Network and University of Toronto, Toronto, Ontario, Canada), Dr. Tommaso Maraffi (Hôpital Intercommunal de Créteil, Créteil, France), Dr. Emmanuel Charbonney (Centre Hospitalier de l’Université de Montréal (CHUM) and Hôpital du Sacré-Coeur de Montréal, Montreal, Québec, Canada), Dr. Stephanie Sibley (Queen's University, Kingston, Ontario, Canada), Dr. Ewan Goligher (University of Toronto, Toronto, Ontario, Canada) Dr. Niall Ferguson (University of Toronto, Toronto, Ontario, Canada), Dr. Anna Geagea (North York General Hospital, Toronto, Ontario, Canada), Dr. Phil Shin (North York General Hospital, Toronto, Ontario, Canada), Dr. Irene Telias (University Health Network, Toronto, Ontario, Canada), Dr. Chris Yarnell (University of Toronto, Toronto, Ontario, Canada), Gabriela Ferreyra (Città della Salute e della Scienza Hospital – University of Turin, Italy), and Hiba Azher (AHRC, Unity Health Toronto, Toronto, Ontario, Canada)

The authors also thank Professor Cheryl Misak and the Canadian Critical Care Trials Group Patient and Family Partners Committee for their consultation and input on the outcome measures.