SNOMED CT	ISO 19115 Topic Categories	Source
http://def.seegrid.csiro.au/isotc211/iso19115/2003/code/TopicCategory/health	http://purl.bioontology.org/ontology/SNOMEDCT/263775005	LOOM
http://def.seegrid.csiro.au/isotc211/iso19115/2003/code/TopicCategory/elevation	http://purl.bioontology.org/ontology/SNOMEDCT/103720008	LOOM
http://def.seegrid.csiro.au/isotc211/iso19115/2003/code/TopicCategory/location	http://purl.bioontology.org/ontology/SNOMEDCT/246267002	LOOM
http://def.seegrid.csiro.au/isotc211/iso19115/2003/code/TopicCategory/environment	http://purl.bioontology.org/ontology/SNOMEDCT/276339004	LOOM