1. Systematic Review Initiative; NHS Blood and Transplant; Oxford UK
2. Nuffield Department of Clinical Laboratory Sciences; University of Oxford; Oxford UK
3. Trauma and Orthopaedic Specialist Registrar; University Hospitals of Leicester NHS Trust; Leicester UK
4. Emergency Medicine Research Oxford (EMROx); Oxford University Hospitals NHS Foundation Trust; Oxford UK
5. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences; University of Oxford; Oxford UK
6. Haematology/Transfusion Medicine; NHS Blood and Transplant; Oxford UK