1. UCC Cancer Trials Group, Cork University Hospital, Cork, Ireland
2. Cancer Trials Ireland, Dublin, Ireland
3. St Vincents University Hospital, Dublin, Ireland
4. University Hospital Limerick, Limerick, Ireland
5. Irish Research Radiation Oncology Group, Dublin, Ireland
6. Bon Secours Radiotherapy Centre in association with UPMC Hillman Cancer Center, Cork, Ireland
7. Midlands Regional Hospital, Tullamore, Ireland
8. St Lukes Radiation Oncology Trials Unit, Dublin, Ireland
9. Letterkenny University Hospital, Letterkenny, Ireland
10. Tallaght University Hospital, Dublin, Ireland
11. Beacon Hospital, Dublin, Ireland