CD34 and B-cell chronic lymphocytic leukemia: This analysis was performed for seventy-three cases: normal bone marrow (11 samples), normal peripheral blood (5 samples), sorted cell populations (CD4+ T cells, CD8+ T cells, B cells, CD34+ blasts, monocytes, neutrophils, eosinophils and erythroid precursors), and acute leukemia patients (45 samples), CLL patients (2 samples), and CML patients (2 samples) (Table S2).