OS and EFS. (A) Overall survival (OS) and (B) event-free survival (EFS) from the time of diagnosis of patients with an HLA-identical sibling (n = 80, solid line) and those without (n = 82, dotted line). (C) OS and (D) EFS of patients who received a nonmyeloablative allograft (n = 58, solid line) and those who received a second high-dose melphalan autograft (n = 46, dotted line).