PRIOR CONCURRENT THERAPY: Biologic therapy: Prior low dose radioimmunotherapy allowed Chemotherapy: No prior high dose chemotherapy with PBSC rescue At least 4 weeks since prior chemotherapy and recovered Endocrine therapy: At least 2 weeks since prior corticosteroids and recovered Radiotherapy: Prior low dose radioimmunotherapy allowed Prior radiotherapy to less than 35% of red marrow allowed At least 4 weeks since prior radiotherapy to index lesion Surgery: At least 4 weeks since major surgery