title: Comment on "Comparison of ionization chambers of various volumes for IMRT absolute dose verification".
authors.forename: Larry
authors.initials: L
authors.lastname: DeWerd
authors.forename: Rock
authors.initials: R
authors.lastname: Mackie
mesh_terms: D002138:Calibration; D003198:Computer Simulation; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D019047:Phantoms, Imaging; D011786:Quality Control; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D020266:Radiotherapy, Conformal / Q000295:instrumentation* / Q000379:methods; D013997:Time Factors