<http://ns.inria.fr/covid19/PMC7379234#title>	<http://purl.org/dc/terms/subject>	"Body fluids" .
<http://ns.inria.fr/covid19/PMC7379234#title>	<http://purl.org/dc/terms/subject>	"Medical tests" .
<http://ns.inria.fr/covid19/PMC7379234#title>	<http://purl.org/dc/terms/subject>	"Stem cells" .
<http://ns.inria.fr/covid19/PMC7379234#title>	<http://purl.org/dc/terms/subject>	"Vesicles" .