title: Four years experience with a cobalt unit.
mesh_terms: D003035:Cobalt; D003037:Cobalt Radioisotopes; D006801:Humans; D009369:Neoplasms / Q000628:therapy*
chemical_list: D003037:Cobalt Radioisotopes; D003035:Cobalt
keywords: COBALT/radioactive; NEOPLASMS/therapy