1. Department of Radiology, St. James’s Hospital, Dublin, Ireland
2. Department of Surgery, St. James’s Hospital, Dublin, Ireland
3. St Luke’s Radiation Oncology Network, Dublin, Ireland
4. Department of Radiation Oncology, St. James’s Hospital, Dublin, Ireland
5. Colorectal Surgery Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
6. Trinity St James's Cancer Institute, Dublin, Ireland