title: In reply to Cheung.
authors: Mark
authors: M
authors: Ruschin
authors: Philip T
authors: PT
authors: Komljenovic
authors: Steve
authors: S
authors: Ansell
authors: Cynthia
authors: C
authors: Ménard
authors: Gregory
authors: G
authors: Bootsma
authors: Young-Bin
authors: YB
authors: Cho
authors: Caroline
authors: C
authors: Chung
authors: David
authors: D
authors: Jaffray
mesh_terms: D054893:Cone-Beam Computed Tomography / Q000379:methods*; D016371:Cranial Irradiation / Q000379:methods*; D006801:Humans; D016634:Radiosurgery / Q000379:methods*; D061089:Radiotherapy, Image-Guided / Q000379:methods*