1. Leeds Cancer Centre St James's University Hospital Leeds LS9 7TF U.K
2. St John's Institute of Dermatology Guy's and St Thomas NHS Foundation Trust St Thomas’ Hospital London SE1 7EH U.K
3. Queen Elizabeth Hospital University Hospital Birmingham Birmingham B15 2TH U.K
4. Institute of Cancer Sciences University of Manchester The Christie NHS Foundation Trust Manchester M20 4BX U.K
5. Tameside Hospital Integrated Care NHS Foundation Trust Ashton‐under‐Lyne OL6 9RW U.K
6. British Association of Dermatologists Willan House, 4 Fitzroy Square London W1T 5HQ U.K
7. Haematology Department Hammersmith Hospital Du Cane Road London W12 0HS U.K
8. The University of Texas MD Anderson Cancer Centre Houston TX U.S.A
9. Chronic Lymphocytic Leukaemia (CLL) Unit The Royal Marsden NHS Foundation Trust Sutton SW3 6JJ U.K
10. Guy's and St Thomas’ NHS Foundation Trust Guy's Hospital London SE1 9RT U.K