1. ArrayExpress. https://www.ebi.ac.uk/arrayexpress/. ArrayExpress. https://www.ebi.ac.uk/arrayexpress/.
2. Cellosaurus. https://web.expasy.org/cellosaurus/. Cellosaurus. https://web.expasy.org/cellosaurus/.
3. Classification of Diseases. https://www.who.int/standards/classifications/classification-of-diseases. Classification of Diseases. https://www.who.int/standards/classifications/classification-of-diseases.
4. Gene Expression Omnibus. https://www.ncbi.nlm.nih.gov/geo/. Gene Expression Omnibus. https://www.ncbi.nlm.nih.gov/geo/.
5. Genomic Expression Archive. https://www.ddbj.nig.ac.jp/gea/index-e.html. Genomic Expression Archive. https://www.ddbj.nig.ac.jp/gea/index-e.html.