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Comparison of overall survival of patients in the locoregional radiotherapy (LRRT) and non-LRRT group: low-risk patients (A), intermediate-risk patients (B), and high-risk patients (C). Comparison of overall survival in patients in the metastasis radiotherapy (MRT) and non-MRT group: low-risk patients (D), intermediate-risk patients (E), and high-risk patients (F).
