<http://ns.inria.fr/covid19/PMC6549382#body_text>	<http://purl.org/dc/terms/subject>	"2005 establishments in Ireland" .
<http://ns.inria.fr/covid19/PMC6549382#body_text>	<http://purl.org/dc/terms/subject>	"Abdominal pain" .
<http://ns.inria.fr/covid19/PMC6549382#body_text>	<http://purl.org/dc/terms/subject>	"G20 nations" .