Clinical Signs and Symptoms Ontology	Health Level Seven Reference Implementation Model, Version 3	Source
http://purl.bioontology.org/ontology/HL7/C1576419	http://purl.jp/bio/11/csso/CSSO_000211	LOOM
http://purl.bioontology.org/ontology/HL7/C1550672	http://purl.jp/bio/11/csso/CSSO_000232	LOOM