title: A comparison of X-ray dose calibration using different phantom materials.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D006801:Humans; D008953:Models, Anatomic; D009369:Neoplasms / Q000532:radiotherapy*; D011867:Radioisotope Teletherapy / Q000379:methods; D011874:Radiometry / Q000295:instrumentation / Q000379:methods*; D011879:Radiotherapy Dosage
chemical_list: D003037:Cobalt Radioisotopes