Table 1 Data sources

DO

http://disease-ontology.org/

CTD

http://ctdbase.org/

GeneRIF

http://www.ncbi.nlm.nih.gov/gene/about-generif

GAD

https://geneticassociationdb.nih.gov/

OMIM

http://www.omim.org/

GO & GOA

http://www.geneontology.org

HumanNet

http://www.functionalnet.org/humannet/

OAHG

bio-annotation.cn/OAHG/