CD5+ Relapsed/ RefractoryHematopoietic Malignancies;Chronic LymphocyticLeukemia (CLL); MantleCell Lymphoma (MCL);Diffuse Large B-cellLymphoma (DLBCL);Follicular Lymphoma (FL);Peripheral T-cell Lymphomas(PTCL). The gene discussed is CD5; the disease is B-cell chronic lymphocytic leukemia.