[1] Univ Birmingham, Canc Res Clin Trials Unit, Birmingham, W Midlands, England
[2] Inst Canc Res, Clin Trials & Stat Unit, London, England
[3] Cambridge Clin Trials Unit, Cambridge, England
[4] Univ Oxford, Ctr Stat Med, Nuffield Dept Orthopaed Rheumatol & Musculoskelet, Oxford Clin Trials Res Unit, Oxford, England
[5] Univ Leeds, Leeds Inst Clin Trials Res, Clin Trials Res Unit, Leeds, W Yorkshire, England
[6] Royal Marsden NHS Fdn Trust, Royal Marsden Clin Trials Unit, London, England
[7] Imperial Coll London, Imperial Clin Trials Unit, London, England
[8] Univ Glasgow, Canc Res UK Glasgow Clin Trials Unit, Glasgow, Lanark, Scotland
[9] Univ Michigan, Dept Radiat Oncol, Ann Arbor, MI 48109 USA
[10] Univ Michigan, Dept Biostat, Ann Arbor, MI 48109 USA
[11] Univ Edinburgh, Usher Inst, Edinburgh Clin Trials Unit, Edinburgh, Midlothian, Scotland
[12] Med & Healthcare Prod Regulatory Agcy, London, England
[13] Janssen Res & Dev, Early Dev Oncol Stat Dept, Spring House, PA USA
[14] Univ Oxford, Primary Care Clin Trials Unit, Oxford, England
[15] Roche Prod, Welwyn Garden City, Herts, England
[16] Univ Liverpool, Liverpool Clin Trials Ctr, Liverpool, Merseyside, England