<http://ns.inria.fr/covid19/PMC7115661#body_text>	<http://purl.org/dc/terms/subject>	"Smallpox vaccines" .
<http://ns.inria.fr/covid19/PMC7115661#body_text>	<http://purl.org/dc/terms/subject>	"Council areas of Scotland" .
<http://ns.inria.fr/covid19/PMC7115661#body_text>	<http://purl.org/dc/terms/subject>	"Glycosaminoglycans" .