Figure 1.

Hierarchical decomposition of a sample network with seven nodes denoted by n1, n2, , n7to three levels. Directed edges represent the interactions. Dashed line splits the nodes into different levels. Each of the seven nodes are assigned one of the three existing. levels

Gülsoy et al. BMC Bioinformatics 2012 13:250   doi:10.1186/1471-2105-13-250
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