Timebank Ontology WHO COVID-19 Rapid Version CRF semantic data model Source
http://purl.org/vodan/whocovid19crfsemdatamodel/Person http://xmlns.com/foaf/0.1/Person LOOM
http://purl.obolibrary.org/obo/NCIT_C3117 https://w3id.org/timebank#Hypertension LOOM