<http://ns.inria.fr/covid19/PMC2267503#title>	<http://purl.org/dc/terms/subject>	"Polio" .
<http://ns.inria.fr/covid19/PMC2267503#title>	<http://purl.org/dc/terms/subject>	"Burials at Arlington National Cemetery" .
<http://ns.inria.fr/covid19/PMC2267503#title>	<http://purl.org/dc/terms/subject>	"Virology" .
<http://ns.inria.fr/covid19/PMC2267503#title>	<http://purl.org/dc/terms/subject>	"American pathologists" .