1. 1Department of Haematology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
2. 2Department of Histopathology, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
3. 3Department of Haematology, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, United Kingdom
4. 4Department of Haematology, The Royal Wolverhampton NHS Trust, Wolverhampton, United Kingdom
5. 5Department of Haematology, Worcestershire Acute Hospitals NHS Trust, Worcester, United Kingdom
6. 6Department of Haematology, Sandwell and West Birmingham Hospitals NHS Trust, Birmingham, United Kingdom
7. 7Department of Haematology, University Hospitals Coventry and Warwickshire, Coventry, United Kingdom
8. 8Department of Haematology, The Dudley Group NHS Foundation Trust, Dudley, United Kingdom
9. 9Department of Haematology, Shrewsbury and Telford Hospital NHS Trust, Shrewsbury, United Kingdom
10. 10Department of Haematology, Walsall Healthcare NHS Trust, Walsall, United Kingdom