1. Working Party, on behalf of the Association of Anaesthetists
2. Department of Haematology University College London NHS Foundation Trust and NHS Blood and Transplant London UK
3. Department of Haematology Guy’s and St Thomas’ NHS Foundation Trust London UK
4. Department of Anaesthesia Bart’s Health NHS Trust London UK
5. Department of Anaesthesia University College London NHS Foundation Trust London UK
6. 6Department of Paediatric Anaesthesia Great Ormond Street Hospital NHS Trust and Association of Paediatric Anaesthetists of Great Britain and Ireland London UK
7. Department of Orthopaedic Surgery Guy’s and St Thomas’ NHS Foundation Trust London UK
8. Department of Anaesthesia Department of Critical Care Medicine King’s College Hospital NHS Foundation Trust London UK
9. Department of Anaesthesia Worcestershire Acute Hospitals NHS Trust UK and Association of Anaesthetists Trainee Committee
10. Manchester and Royal College of Anaesthetists
11. Department of Anaesthesia University Hospitals of Leicester NHS Trust and Obstetric Anaesthetists’ Association Leicester UK