Patients proceed to group A if they are promyelocyte-retinoic acid receptor alpha (PML-RARa)-negative after recovery from third consolidation. Patients proceed to allogeneic bone marrow transplantation (BMT) on group B if they are PML-RARa-positive, achieve CR, are under age 55, and have an HLA-A, -B, and -DR identical, chronic myelomonocytic leukemia nonreactive, family donor after recovery from third consolidation. Patients proceed to autologous BMT on group B if they are PML-RARa-positive, achieve CR, and have no identical family donor or are age 55 and over after recovery from third consolidation. Patients proceed to arm III of group A if they are PML-RARa-positive and ineligible for BMT after recovery from third consolidation.