1. Director, University College London, University College London Hospitals’ Surgical Outcomes Research Center, London, United Kingdom; Honorary Senior Lecturer, University College London; and Consultant, Anaesthesia and Critical Care, University College Hospital.
2. Professor, Smiths Medical Professor of Anaesthesia and Critical Care, University College London; and Honorary Consultant, Anaesthesia, University College Hospital.
3. Research Fellow, University College London, University College London Hospitals’ Surgical Outcomes Research Center, University College Hospital.
4. Professor and Director, Intensive Care National Audit and Research Center, London, United Kingdom.
5. Professor of Critical Care Medicine, University of Southampton, Southampton, United Kingdom; Honorary Consultant, Critical Care, Southampton University Hospital; and Director, National Institute for Academic Anaesthesia’s Health Services Research Center, London, United Kingdom.