OS of the 106 randomized patients according to IPI at relapse. Survival is calculated from the first day of the first course of DHAP. (A) Survival of patients in the DHAP arm according to the IPI. (B) Survival of patients in the ABMT arm according to the IPI. (C) Patients with IPI = 0, DHAP versus ABMT arm. (D) Patients with IPI = 1-3, DHAP versus ABMT arm.