<http://ns.inria.fr/covid19/PMC7255253#body_text>	<http://purl.org/dc/terms/subject>	"Clinical research" .
<http://ns.inria.fr/covid19/PMC7255253#body_text>	<http://purl.org/dc/terms/subject>	"2000 albums" .
<http://ns.inria.fr/covid19/PMC7255253#body_text>	<http://purl.org/dc/terms/subject>	"Medical mnemonics" .