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CONSORT diagram. Full details of the trial profile before follow-up have been published previously.17 CHOP, cyclophosphamide, doxorubicin, vincristine, and prednisone; CVP, cyclophosphamide, vincristine, and prednisone; FCM, fludarabine, cyclophosphamide, and mitoxantrone; ITT, intent-to-treat.
