PRIOR CONCURRENT THERAPY: Biologic therapy: No prior stem cell transplantation after high-dose chemotherapy No concurrent growth factors Chemotherapy: See Disease Characteristics See Biologic At least 4 weeks since prior chemotherapy Endocrine therapy: Not specified Radiotherapy: See Disease Characteristics At least 4 weeks since prior radiotherapy Prior radiotherapy to less than 30% of red marrow allowed Surgery: At least 4 weeks since prior major surgery