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Analysis from start of maintenance therapy. (A) Progression-free survival from start of maintenance therapy (PFS_m). (B) Progression-free survival 2 from start of maintenance therapy (PFS-2_m). (C) Overall survival from start of maintenance therapy (OS_m). (Note that PFS-2 was calculated from the date of enrollment to the date of second relapse/progression or death or the date the patient was last known to be in remission.)
