Figure 2

Consensus tree of hierarchical clustering of AC (A1–A10), SCC (P1–P10), SCLC (K1–K10) and lung tissue samples (NT) as a control without cancer (N1–N5) using the genes with the higherst differential expression according to the fold change from the comparison of AC vs. NT, SCC vs. NT and SCLC vs. NT. Data are displayed by a color code. Green, transcript levels below the median; black, equal to the median; red, greater than median. The effective length of the dash after sample separation visualizes the degree of similarity of the different samples.