1. Department of Anaesthesia and Critical Care Royal Infirmary of Edinburgh Edinburgh UK
2. Usher Institute University of Edinburgh Edinburgh UK
3. Department of Anaesthesia and Critical Care Victoria Hospital Kirkcaldy UK
4. Department of Process, Energy and Transport Engineering, MeSSO Research Group Munster Technological University Cork Ireland
5. Faculty of Medicine, University Medical Centre Hamburg‐Eppendorf University of Hamburg Hamburg Germany
6. Department of Anaesthesia St John's Hospital Livingston UK
7. Department of Anaesthesia Western General Hospital UK
8. Department of Respiratory Sciences University of Leicester Leicester UK
9. Department of Infectious Diseases and HIV Medicine University Hospitals of Leicester NHS Trust Leicester UK