OUTLINE: Prior to beginning treatment on SWOG-9623, blood samples and bone marrow aspirates (when available) are collected from each patient. Patients randomized to autologous peripheral stem cell transplant have specimens collected again at 3 months (apheresis aliquot and blood). At 3 and 12 months after completing chemotherapy, blood samples are collected from all patients. Samples are collected again from any patient presenting with a second malignancy in the future. DNA is collected from blood or bone marrow samples. Clonality at the HUMARA locus is examined. Microsatellite instability is assessed at multiple chromosomal loci: 7q31, 5q31, 17p12, 8p22, 11q23, and the BAT loci. If the HUMARA or microsatellite repeat assays are positive for clonal hematopoiesis, then specimens are examined for myeloid lymphoid leukemia fusion transcripts commonly reported in acute myeloid leukemia with 11q23 abnormalities. Specimens are also examined for RAS mutations (H-, K-, N-RAS). Patients do not receive the results of the genetic testing and the results do not influence the type or duration of treatment.