Institution: | 1. Department of Sarcoma and General Surgery, Midlands Abdominal and Retroperitoneal Sarcoma Unit, University Hospital Birmingham NHS Foundation Trust, Birmingham, UK;2. Department of Sarcoma Surgery, Istituto Nazionale Tumori, Milan, Italy;3. Department of Medical Statistics, Institute of Translational Medicine, University Hospital Birmingham NHS Foundation Trust, Birmingham, UK;4. Department of Radiology, Istituto Nazionale Tumori, Milan, Italy |