Read Codes, Clinical Terms Version 3 (CTV3)	Dublin Core Collection Description Frequency Vocabulary	Source
http://purl.org/cld/freq/irregular	http://purl.bioontology.org/ontology/RCD/X78yR	LOOM
http://purl.org/cld/freq/continuous	http://purl.bioontology.org/ontology/RCD/X78uF	LOOM
http://purl.org/cld/freq/daily	http://purl.bioontology.org/ontology/RCD/Ua10v	LOOM