title: Biological leukemia treatment shows breakthrough potential.
mesh_terms: D017209:Apoptosis / Q000187:drug effects; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000276:immunology* / Q000628:therapy*; D011379:Prognosis; D013601:T-Lymphocytes / Q000276:immunology / Q000637:transplantation*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology / Q000637:transplantation*