University of Queensland - Critical Care Research Group, Queensland Children's Hospital - Paediatric Critical Care Research Group, University of Queensland, Inova Health System - Inova Heart and Vascular Institute, Queensland University of Technology, University of Queensland - Critical Care Research Group, University of Queensland, University of Queensland, University of Galway, New York Presbyterian Hospital - Center for Acute Respiratory Failure, Monash University - Department of Epidemiology and Preventive Medicine, Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto,Canada, and Division of Respirology and Critical Care Medicine, Toronto General Hospital, University of Michigan at Ann Arbor - University of Michigan Medical Center (Michigan Medicine), University of Barcelona - Faculty of Medicine, SC Anestesia e Rianimazione, ASST Santi Paolo e Carlo, King Faisal Specialist Hospital and Research Centre, Monash University - Department of Epidemiology and Preventive Medicine, Nippon Medical School, University of Buenos Aires - Neumonología, Hospital de Clínicas, University of British Columbia (UBC) - Faculty of Medicine, University College Dublin (UCD), The University of Hong Kong, Nemours/Alfred I. duPont Hospital for Children, Fondazione IRCCS Ospedale Maggiore di Milano, Fondazione IRCCS Ospedale Maggiore di Milano and University of Queensland - Critical Care Research Group