title: Basic principles of radiotherapy for surgical oncologists. 4--Fractions, photons and the future.
authors.affiliation: Department of Clinical Oncology, Velindre Hospital, Whitchurch, Cardiff, UK.
authors.forename: T S
authors.initials: TS
authors.lastname: Maughan
mesh_terms: D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy; D011878:Radiotherapy / Q000295:instrumentation / Q000379:methods / Q000639:trends