Pattern of expression of early myeloid genes by quantitative real-time PCR. The same sample set as in Figure 4 was used. The horizontal bars represent median values. Significance values are shown for the comparison of normal (N) versus MDS, N versus non-MDS anemia (NMA), and MDS versus NMA. Genes tested were CSFR2A (A), CSFR2B (B), and IL3RA (C).