<http://ns.inria.fr/covid19/PMC7376847#title>	<http://purl.org/dc/terms/subject>	"Hematology" .
<http://ns.inria.fr/covid19/PMC7376847#title>	<http://purl.org/dc/terms/subject>	"G7 nations" .
<http://ns.inria.fr/covid19/PMC7376847#title>	<http://purl.org/dc/terms/subject>	"Blood donation" .