<http://ns.inria.fr/covid19/PMC7392480#body_text>	<http://purl.org/dc/terms/subject>	"Spain" .
<http://ns.inria.fr/covid19/PMC7392480#body_text>	<http://purl.org/dc/terms/subject>	"Medical tests" .
<http://ns.inria.fr/covid19/PMC7392480#body_text>	<http://purl.org/dc/terms/subject>	"Southern European countries" .