1. Department of Anaesthesia Queen Charlottes and Chelsea Hospital London UK
2. Northumberland UK
3. Department of Anaesthesia London North West University Healthcare NHS Trust London UK
4. School of Psychology University of Plymouth Plymouth UK
5. Associate Specialist Department of Anaesthesia, Buckinghamshire Healthcare NHS Trust Buckinghamshire UK
6. Department of Anaesthesia Oxford University Hospitals NHS Foundation Trust Oxford UK
7. Metropolitan Department of Anaesthetics, Critical Care and Pain Management University of KwaZulu‐Natal Pietermaritzburg South Africa
8. Department of Anaesthesia The Royal Marsden NHS Foundation Trust London UK
9. Department of Anaesthesia Nottingham University Hospitals NHS Trust Nottingham UK