<http://ns.inria.fr/covid19/PMC7131621#body_text>	<http://purl.org/dc/terms/subject>	"Clinical research" .
<http://ns.inria.fr/covid19/PMC7131621#body_text>	<http://purl.org/dc/terms/subject>	"Statistical process control" .
<http://ns.inria.fr/covid19/PMC7131621#body_text>	<http://purl.org/dc/terms/subject>	"Lists of countries" .