Nanbyo Disease Ontology	WHO COVID-19 Rapid Version CRF semantic data model	Source
http://nanbyodata.jp/ontology/NANDO_2100008	http://purl.obolibrary.org/obo/NCIT_C80078	LOOM
http://nanbyodata.jp/ontology/NANDO_2100042	http://purl.bioontology.org/ontology/SNOMEDCT/128238001	LOOM
http://nanbyodata.jp/ontology/NANDO_2100157	http://purl.obolibrary.org/obo/NCIT_C2985	LOOM
http://nanbyodata.jp/ontology/NANDO_2100158	http://purl.obolibrary.org/obo/NCIT_C2985	LOOM