The Amphioxus Development and Anatomy Ontology NanoParticle Ontology Source
http://purl.obolibrary.org/obo/GO_0005575 http://purl.org/obo/owl/GO#GO_0005575 LOOM
http://purl.obolibrary.org/obo/CL_0000000 http://purl.org/obo/owl/GO#GO_0005623 LOOM