1. Royal Marsden Hospital, Sutton, United Kingdom
2. Queen Elizabeth Hospital, Birmingham, United Kingdom
3. Medical Research Council Clinical Trials Unit at University College London, London, United Kingdom
4. University of Bristol, Bristol, United Kingdom
5. Royal Victoria Infirmary, Newcastle, United Kingdom
6. St James's Institute of Oncology, St. James's University Hospital, Leeds, United Kingdom
7. Leeds Institute of Cancer Studies and Pathology, University of Leeds, Leeds, United Kingdom
8. Bristol Haematology and Oncology Centre, Bristol, United Kingdom
9. Medical Research Council, Clinical Trials Unit at University College London, London, United Kingdom