1. CRUK/MRC Oxford Institute for Radiation Oncology; University of Oxford; Oxford UK
2. Nuffield Department of Surgical Sciences; University of Oxford; Oxford UK
3. Churchill Hospital Cancer Centre; Oxford University Hospitals; NHS Foundation Trust; Oxford UK
4. Bodleian Health Care Libraries; University of Oxford; Oxford UK
5. Clinical Trial Service Unit & Epidemiological Studies Unit; Nuffield Department of Population Health; University of Oxford; Oxford UK
6. Addenbrooke's Hospital; Cambridge University Hospitals; NHS Foundation Trust; Cambridge UK