Focused grid telecobalt therapy.
D003035:Cobalt; D003037:Cobalt Radioisotopes; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D011851:Radioactivity
D003037:Cobalt Radioisotopes; D003035:Cobalt
COBALT/radioactive; NEOPLASMS/radiotherapy