Long-term lymphocytic leukemia (CLL) is really a lymphoid malignancy characterized with the proliferation and accumulation of experienced CD5+ B cells from the blood, bone marrow and lymphoid tissues. The analysis of CLL requires the existence of ≥5 x109/L mono - clonal B cells of standard phenotype while in the blood. https://letitiaj208bjq4.theideasblog.com/profile