title: Radiation therapy with a linear accelerator.
mesh_terms: D003036:Cobalt Isotopes / Q000627:therapeutic use; D008722:Methods; D009683:Nuclear Medicine / Q000295:instrumentation*; D011867:Radioisotope Teletherapy / Q000295:instrumentation; D011882:Radiotherapy, High-Energy / Q000295:instrumentation*
chemical_list: D003036:Cobalt Isotopes