http://bioportal.bioontology.org Updates to the NCBO BioPortal Repository en-ushttp://bioportal.bioontology.org/ontologies/49761Ontology The Drug Interaction Knowledge Base version The Dug Interaction Knowledge Base ontology. This version is essentially the original version from 2007 with a change to the base IRI to use a PURL was added to the repositorybioontology.org2013-02-09 07:14:59 -0800http://bioportal.bioontology.org/ontologies/47698Ontology The Drug Interaction Knowledge Base version 1.4 was added to the repositorybioontology.org2012-06-18 12:52:18 -0700