Special Report 19
CASE STUDIES FOR AOP DEVELOPMENT
A Developmental Toxicity Ontology (DTO) was built for the purposes of these case studies. The DTO builds upon the Adverse Outcome Pathway Ontology (AOPO). AOPO builds upon the Bioassay Ontology (BAO), the Human Phenotype Ontology (HPO), and the Chemical Entities of Biological Interest Ontology (ChEBI), as well as their dependencies.
 AOPO: https://github.com/DataSciBurgoon/aop-ontology
 BAO: http://bioassayontology.org/
 HPO: https://bioportal.bioontology.org/ontologies/HP
 ChEBI: https://www.ebi.ac.uk/chebi/