Devices, Experimental scaffolds and Biomaterials Ontology	WHO COVID-19 Rapid Version CRF semantic data model	Source
http://www.semanticweb.org/osnathakimi/ontologies/deb#Complications	http://purl.org/vodan/whocovid19crfsemdatamodel/Complications	LOOM
http://www.semanticweb.org/osnathakimi/ontologies/deb#Headache	http://purl.org/vodan/whocovid19crfsemdatamodel/Headache	LOOM
http://www.semanticweb.org/osnathakimi/ontologies/deb#Headache	http://purl.obolibrary.org/obo/NCIT_C34661	LOOM