Curved cobalt needles in radiotherapy.
D003035:Cobalt; D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D006801:Humans; D009339:Needles; D011851:Radioactivity; D011878:Radiotherapy / Q000295:instrumentation*
D003037:Cobalt Radioisotopes; D003035:Cobalt
COBALT, RADIOACTIVE/therapeutic use; RADIOTHERAPY/apparatus and instruments