1. Adult Intensive Care Unit Royal Brompton Hospital, Royal Brompton & Harefield Hospitals (part of Guy's and St Thomas's Foundation Trust) London UK
2. Division of Anaesthetics, Pain Medicine, and Intensive Care, Department of Surgery and Cancer Imperial College London London UK
3. Department of Anaesthesia Royal Brompton Hospital, Royal Brompton & Harefield Hospitals (part of Guy's and St Thomas's Foundation Trust) London UK