Disease similarity map:
Legend:
This Disease Similarity Map connects diseases (nodes) with edges on 
    the basis of common causal biomarker genes (edges are shown for FDR < 0.05 and overlap size >= 2). The primary 
    disease is represented by a red diamond shape, neighboring diseases by blue circles. Solid edges connect the 
    primary disease to neighboring diseases. Dashed edges connect neighboring diseases. Undirected solid red edges 
    connect the primary disease in the center with similar diseases (neighbors), undirected dashed orange edges 
    connect similar neighbors. Gray arrows point from a child disease to the parent disease according to the 
    MeSH hierarchy. Edge widths are proportional to the 
    statistical significance of association and node sizes are proportional to the number of causal biomarker 
    genes of the disease.