1. Haematological Sciences, Newcastle University, Newcastle upon Tyne;
2. Department of Haematology, Craigavon Area Hospital, Portadown;
3. Department of Haematology, University Hospital of North Staffordshire, Stoke on Trent;
4. Department of Haematology, Western General Hospital, Edinburgh;
5. Department of Haematology, Raigmore Hospital, Inverness;
6. Department of Haematology, Harbour Hospital, Poole;
7. Department of Haematology, Sunderland Royal Hospital, Sunderland;
8. Department of Haematology, University Hospital of North Tees, Stockton on Tees; and
9. Department of Haematology, Staffordshire General Hospital, Stafford, United Kingdom