1 East Midlands Sarcoma Service, Nottingham University Hospitals (City Campus), Nottingham NG5 1PB, UK.
2 East Midlands Sarcoma Service, Nottingham University Hospitals (City Campus), Nottingham NG5 1PB, UK; Leicester Cancer Research Centre, University of Leicester, Leicester LE1 5WW, UK. Electronic address: Robert.Ashford@uhl-tr.nhs.uk.