Mass Spectrometry Ontology FlyGlycoDB Source
http://www.flyglycodb.org/ontologies/2015/Protein http://purl.obolibrary.org/obo/MS_1000882 LOOM
http://www.flyglycodb.org/ontologies/2015/Activity http://purl.obolibrary.org/obo/NCIT_C43431 LOOM
http://www.flyglycodb.org/ontologies/2015/Reference http://purl.obolibrary.org/obo/MS_1002866 LOOM