1. Centre for Cancer Research and Cell Biology; Queens's University Belfast; Belfast UK
2. Department of Pathology and Tumour Biology, Leeds Institute of Cancer and Pathology; St James Hospital; Leeds UK
3. North Wales Cancer Treatment Centre; Rhyl UK
4. Centre for Trials Research; Cardiff University; Cardiff UK
5. Countess of Chester Hospital; Chester UK
6. University of Torino, Department of Oncology; Candiolo, Torino Italy
7. Candiolo Cancer Institute, FPO-IRCCS; Candiolo, Torino Italy
8. CRUK/MRC Oxford Institute for Radiation Oncology; University of Oxford; Oxford UK