871 / 1708
203/1230= 16% developed a breast cancer.
Median age at RT-treatment of the primary tumor 15 (0-20) years .
1230 female childhood survivors of the Childhood Cancer Survivor Study
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871 / 1708
203/1230= 16% developed a breast cancer.
Median age at RT-treatment of the primary tumor 15 (0-20) years .
1230 female childhood survivors of the Childhood Cancer Survivor Study