Fig. 2From: Long-term outcomes of busulfan plus melphalan-based versus melphalan 200 mg/m2 conditioning regimens for autologous hematopoietic stem cell transplantation in patients with multiple myeloma: a systematic review and meta-analysisComparisons of survivals between MM patients having undergone HDMEL and BUMEL-based conditioning regimens. a Progression-free survival (PFS); b overall survival (OS)Back to article page