Process Chemistry Ontology	EDDA Study Designs Taxonomy	Source
http://ontologies.dbmi.pitt.edu/edda/StudyDesigns.owl#risk_assessment	http://purl.obolibrary.org/obo/PROCO_0000291	LOOM
http://ontologies.dbmi.pitt.edu/edda/StudyDesigns.owl#experimental_design	http://purl.obolibrary.org/obo/PROCO_0000276	LOOM
http://ontologies.dbmi.pitt.edu/edda/StudyDesigns.owl#factorial_design	http://purl.obolibrary.org/obo/PROCO_0000008	LOOM
http://ontologies.dbmi.pitt.edu/edda/StudyDesigns.owl#study_design	http://purl.obolibrary.org/obo/OBI_0500000	LOOM