Persistent lymphocytic leukemia (CLL) is a lymphoid malignancy characterised by the proliferation and accumulation of experienced CD5+ B cells inside the blood, bone marrow and lymphoid tissues. The analysis of CLL needs the presence of ≥five x109/L mono - clonal B cells of normal phenotype in the blood. Dalam video https://lyndonm666gxo5.wikinstructions.com/user