1. Clinical Immunology Service, Institute of Immunology and Immunotherapy, University of Birmingham , UK
2. Lancashire Teaching Hospitals NHS Foundation Trust , Preston, Lancashire , UK
3. Department of Clinical Immunology and Allergy, St James University Hospital, Leeds Teaching Hospital NHS Trust , Leeds , UK
4. NIHR Newcastle Biomedical Research Centre, Newcastle University and Newcastle upon Tyne Hospitals NHS Foundation Trust , Newcastle upon Tyne , UK
5. Department of Immunology, Royal Free London NHS Foundation Trust , London , UK
6. Royal Papworth NHS Foundation Trust , Cambridge , UK
7. University Hospitals Birmingham NHS Foundation Trust , Birmingham , UK
8. The Dudley Group NHS Foundation Trust , Birmingham , UK
9. Clinical Immunology and Allergy Department, Sheffield Teaching Hospitals NHS Foundation Trust , UK
10. Clinical Immunology, North Bristol NHS Trust , Bristol , UK
11. Department of Haematology & Immunology, Royal Infirmary of Edinburgh , NHS Lothian , UK
12. Clinical Immunology and Allergy Department, Nottingham University Hospital NHS Trust , Nottingham , UK
13. Specialist Allergy and Clinical Immunology, University College London Hospitals , London , UK
14. Regional Immunology Service, The Royal Hospitals , Belfast , UK
15. Department of Clinical Immunology, Oxford University Hospitals NHS Foundation Trust , Oxford , UK
16. Department of Immunology, Royal Stoke Hospital , Stoke-on-Trent , UK
17. Translational and Clinical Research Institute, Immunity and Inflammation Theme, Newcastle University , Newcastle upon Tyne , UK
18. Ear Institute, University College London , London , UK
19. Regional Department of Clinical Immunology & Allergy, Royal Victoria Infirmary, Newcastle upon Tyne Hospitals NHS Foundation Trust , UK
20. Immunology Department, Salford Royal NHS Foundation Trust , Manchester , UK
21. Translational and Clinical Research Institute, Newcastle University, and Paediatric Stem Cell Transplant Unit, Great North Children’s Hospital , Newcastle upon Tyne , UK
22. Department of Allergy and Clinical Immunology, University Hospital Southampton NHS Trust, University of Southampton , Southampton , UK
23. Immunology Department, Royal London Hospital, Barts Health NHS Trust , London , UK
24. Paediatric Immunology Department, University Hospitals of Birmingham , Birmingham , UK
25. Clinical Immunology Service, South West London Immunodeficiency Centre, Epsom and St Helier University Hospital NHS Trust , London , UK
26. Immunology Department, Aberdeen Royal Infirmary , Aberdeen , UK
27. Immunodeficiency Centre for Wales, University Hospital of Wales , Heath Park, Cardiff , UK
28. Hull University Teaching Hospitals NHS Trust , Hull , UK
29. University Hospitals Plymouth NHS Trust , Plymouth , UK
30. Institute of Immunity and Transplantation, University College London , London , UK
31. Clinical Immunology and Allergy Department , Leicester Royal Infirmary, Leicester , UK
32. Clinical Immunology Department, Sandwell & West Birmingham Hospitals NHS Trust , Birmingham , UK
33. Department of Clinical Immunology, Frimley Park Hospital , Frimley, Surrey , UK
34. Clinical Immunology Service, NHS Greater Glasgow and Clyde , Glasgow , UK