Abbreviation Phrase
RT Radiotherapy
IMRT Intensity-modulated radiotherapy
IDL Isodose level
CSI Craniospinal irradiation
SIR Standardized incidence ratio
EAR Excess absolute risk
SMN Second malignant neoplasm
MDS Myelodysplastic syndrome
AML Acute myeloid leukemia
PA Posteroanterior
CNS Central nervous system