title: Portal imaging.
authors.affiliation: The Bristol Haematology and Oncology Centre, United Bristol NHS Trust, Horfield Road, Bristol BS2 8ED, UK.
authors.forename: J
authors.initials: J
authors.lastname: Kinsman
authors.forename: P
authors.initials: P
authors.lastname: Humphrey
mesh_terms: D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007103:Immobilization; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000532:radiotherapy; D011859:Radiography; D011879:Radiotherapy Dosage