question: List side effects of radiation therapy?
answer: radiation-induced tumors
  radiation necrosis
  microangiopathy
  progressive leukencephalopathy
  pneumonitis
  disturbance of the blood-brain barrier
  radionecrosis of brain tissue
  radiogenic liver damage
  mucositis
  colitis
  osteitis
  osteoradionecrosis
  myositis
  Radiation-induced fibrosis
  Acute skin reactions