Affiliations

• ¹ Department of Haematology, Manchester Royal Infirmary, Manchester, UK.
• ² Department of Haematology, Glasgow Royal Infirmary, Glasgow, UK.
• ³ Department of Haematology, Bristol Royal Infirmary, Bristol, UK.
• ⁴ Department of Haematology, Hammersmith Hospital, London, UK.
• ⁵ Department of Haematology, Queen Elizabeth Hospital, Birmingham, UK.
• ⁶ Royal Manchester Children's Hospital, Manchester, UK.
• ⁷ Department of Haematology, Kent and Canterbury Hospital, Canterbury, UK.
• ⁸ Department of Haematology, Royal Victoria Infirmary, Newcastle, UK.
• ⁹ Department of Haematology, Great Ormond Street Hospital, London, UK.
• ¹⁰ Department of Haematology, Leicester Royal Infirmary, Leicester, UK.
• ¹¹ National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford University Hospitals and the University of Oxford, Oxford, UK.
• ¹² NHS Blood & Transplant, Oxford, UK.
• ¹³ Department of Haematology, Aberdeen Royal Infirmary, Aberdeen, UK.
• ¹⁴ Serious Hazards of Transfusion Office, Manchester Blood Centre, Manchester, UK.
• ¹⁵ ITP Support Association, The Platelet Mission, Bolnhurst, UK.
• ¹⁶ Department of Haematology, University College London Hospitals, London, UK.
• ¹⁷ Department of Haematology, The Royal London Hospital, London, UK.
• ¹⁸ Department of Haematology, St James's University Hospital, Leeds, UK.