Read Codes, Clinical Terms Version 3 (CTV3)
OWL-Time
Source
http://purl.bioontology.org/ontology/RCD/X800h
http://www.w3.org/2006/time#Year
LOOM
http://purl.bioontology.org/ontology/RCD/X8064
http://www.w3.org/2006/time#Year
LOOM