Graphical summary of DeCoaD. The graphical summary of the results when the input disease is Retinitis Pigmentosa 7 (RP7) (MeSH ID: C564284). For each disease represented by a leaf node, the blue color intensity indicates the correlation strength with the input disease RP7. The non-leaf nodes, always displayed in white, are never included in the calculation. They are only shown to reflect the curated hierarchical structure of the disease families containing the identified similar diseases (nodes in blue) in the CTD disease database.