#radiotherapy__radiation_therapy__radiationtherapy__actinotherapy__irradiation  the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance
  supertype:  #therapy  (medicine) the act of caring for someone (as by medication or remedial training etc.); "the quarterback is undergoing treatment for a knee injury"; "he tried every treatment the doctors suggested"; "heat therapy gave the best relief"
  subtype:  #phototherapy  the use of strong light to treat acne or hyperbilirubinemia of the newborn
  subtype:  #radium_therapy__Curietherapy  the use of radium in radiation therapy
  subtype:  #X-ray_therapy  the therapeutic use of X rays

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