The Echinoderm Anatomy and Development Ontology Physico-Chemical Process Source
http://purl.obolibrary.org/obo/GO_0006810 http://purl.obolibrary.org/obo/REX_0000458 LOOM
http://purl.obolibrary.org/obo/GO_0055085 http://purl.obolibrary.org/obo/REX_0000119 LOOM
http://purl.obolibrary.org/obo/BFO_0000015 http://purl.obolibrary.org/obo/REX_0000001 LOOM