broken link to the spreadsheet 'Here, we have used the selection criteria above to provide an overview and comparison of four widespread ontology lookup services, namely: [EBI Ontology Lookup Service](https://www.ebi.ac.uk/ols/index) [BioPortal](https://bioportal.bioontology.org/) [OHDSI Athena](https://athena.ohdsi.org/search-terms/start) [Ontobee and the OBO Foundry](http://www.ontobee.org/) The results of the analysis can be found below, else in tabular format [here]****(https://docs.google.com/spreadsheets/d/1kn1oEhsYJPiLI5gA12B1UsbLBRoSLGbOYcOMDG4614o/edit#gid=0).**