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Kaplan-Meier plots of PFS in patients with primary mediastinal large B-cell lymphoma based on various prognostic factors. (A) Sex, (B) age, (C) stage, (D) IPI, (E) intensity of CT, (F) with or without RT and (G) achievement of CR. PFS, progression-free survival; IPI, International Prognostic Index; CT, chemotherapy; RT, radiotherapy; CR, complete response.
