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(A) Cumulative incidence of second subsequent neoplasm (SN2) after occurrence of first SN (top line) with 95% CI and of second subsequent malignant neoplasm (SMN2; bottom line) after occurrence of first SMN (SMN1) with 95% CI; (B, C) cumulative incidence of SN2 after SN1 by primary pediatric cancer diagnosis. HD, Hodgkin's disease; NB, neuroblastoma; NHL, non-Hodgkin's lymphoma; STS, soft tissue sarcoma.
