http://bioportal.bioontology.org Updates to the NCBO BioPortal Repository en-ushttp://bioportal.bioontology.org/ontologies/44178Ontology Breast tissue cell lines version 2.0 was added to the repositorybioontology.org2010-07-29 20:59:40 -0700http://bioportal.bioontology.org/ontologies/42451Ontology Breast tissue cell lines version 1.0 was added to the repositorybioontology.org2010-03-01 23:40:32 -0800