Patients under 50 years with no HLA matched donor or patients 50-65 years old undergo autologous bone marrow or peripheral blood stem cell (PBSC) transplantation. Patients undergo PBSC mobilization following completion of cyclophosphamide, doxorubicin, and teniposide portion of induction therapy of course 3. Patients receive cytokines subcutaneously (SQ) beginning 2 days following chemotherapy and continuing through PBSC collection. If insufficient stem cells are collected and there is negative bone marrow involvement, patients undergo bone marrow harvest. Patients receive a conditioning regimen consisting of busulfan and cyclophosphamide as for allogeneic BMT. Patients receive autologous bone marrow or PBSC infusion on day 0 and filgrastim (G-CSF) SQ beginning on day 0 and continuing until blood counts recover. Following blood count recovery, patients receive maintenance therapy consisting of interferon alfa SQ and interleukin-2 SQ daily over 5 consecutive days for 4 weeks. Treatment repeats every 8 weeks for 2 courses.