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Fig. 1 | BMC Pediatrics

Fig. 1

From: Characteristics and clinical course of thyroid abnormalities arisen in long term survivors of childhood cancer

Fig. 1

Cumulative incidence in different treatment subgroups of childhood cancer survivors. The log-rank test showed a significant difference between different treatment groups. The irradiation group 1 had the highest event rate compared to the other treatment groups. Irradiation field of group 1 were head and neck, craniospinal irradiation, total body irradiation, cervical spine, nasopharynx, and mediastinum. The remaining irradiation fields (abdomen, pelvis, and limbs) were regarded as irradiation group 2

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