Persistent lymphocytic leukemia (CLL) is a lymphoid malignancy characterized by the proliferation and accumulation of mature CD5+ B cells while in the blood, bone marrow and lymphoid tissues. The analysis of CLL necessitates the presence of ≥5 x109/L mono - clonal B cells of regular phenotype while in the blood. https://carolew874vdl3.birderswiki.com/user