Sub-networks consisted by the genes of different signatures. The first six sub-networks are consisted by the signature genes identified by six graph centrality measurements, repectively. The last one is consisted by the signature genes identified by Chen. Compared with Chen's result, all the sub-networks that consisted by the genes of the signatures that identified by graph centrality are connected graph and denser.
Wang et al. BMC Systems Biology 2011 5(Suppl 3):S10 doi:10.1186/1752-0509-5-S3-S10