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Table 1 Estimated risk of radiation-induced cancer by radiation delivery technique following spinal irradiation for childhood medulloblastoma

From: The clinical case for proton beam therapy

   Radiation delivery technique Risk of radiation-Induced cancer, %
Intensity modulated x-ray beam 30
Electron beam 21
Conventional x-ray beam 20
Intensity modulated electron beam 15
Intensity modulated proton beam 4
  1. Data from Mu et al. [39].