1 Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada. jaeschke@mcmaster.ca
2 Department of Medicine, McMaster University, Hamilton, Ontario, Canada
3 Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, Ontario, Canada
4 Department of Critical Care Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
5 Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia