Peripheral blood stem cells versus bone marrow in pediatric unrelated donor stem cell transplantation.

To the editor: The relative benefits and risks of peripheral blood stem cells (PBSCs) versus bone marrow (BM) for allogeneic hematopoietic stem cell transplantation (SCT) are still a matter of highly controversial debates.[1][1][⇓][2]–[3][3] The first randomized study comparing the 2 stem cell