External beam radiation for retinoblastoma.
D002648:Child; D002675:Child, Preschool; D005134:Eye Neoplasms / Q000532:radiotherapy*; D006801:Humans; D007223:Infant; D009381:Neoplasms, Radiation-Induced / Q000209:etiology; D011878:Radiotherapy / Q000009:adverse effects; D011879:Radiotherapy Dosage; D012175:Retinoblastoma / Q000532:radiotherapy*