| http://www.w3.org/ns/prov#value | - Of the 12,756 potentially eligible participants in the CCSS cohort, three were excluded due to missing information about follow-up, 204 due to missing information about whether radiation or chemotherapy treatments were received, and two who developed thyroid cancer within 5 years of treatment for their initial cancer, leaving 12,547 childhood cancer survivors for analysis.Data Collection and Case
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