1. National Radiotherapy Advisory Group. Radiotherapy: developing a world class service for England [Internet]; 2007. Available from: https://www.axrem.org.uk/radiotheraphy_papers/DH_Radiotheraphy_developing_first_class_service_NRAG.pdf.
2. ESTRO. Radiation Oncology: Optimal Health for all Together [Internet]. Available from: https://www.estro.org/ESTRO/media/ESTRO/About/190417-ESTRO-Vision-Paper-2030.pdf.
3. The Royal College of Radiologists. On target 2: updated guidelines for image-guided radiotherapy [Internet]. London; 2021. Available from: https://www.rcr.ac.uk/sites/default/files/radiotherapy-board-on-target-2-updated-guidance-image-guided-radiotherapy.pdf.
4. Geometric Uncertainties in Daily Online IGRT: Refining the CTV-PTV Margin for Contemporary Photon Radiotherapy;Tudor;Br Inst Radiol,2020
5. Patterns of practice for adaptive and real-time radiation therapy (POP-ART RT) part II: Offline and online plan adaption for interfractional changes;Bertholet;Radiother Oncol,2020