<http://ns.inria.fr/covid19/PMC7302931#body_text>	<http://purl.org/dc/terms/subject>	"Digestive disease symptoms" .
<http://ns.inria.fr/covid19/PMC7302931#body_text>	<http://purl.org/dc/terms/subject>	"Impact of the COVID-19 pandemic" .
<http://ns.inria.fr/covid19/PMC7302931#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC7302931#body_text>	<http://purl.org/dc/terms/subject>	"Diagnostic gastroenterology" .
<http://ns.inria.fr/covid19/PMC7302931#body_text>	<http://purl.org/dc/terms/subject>	"Endoscopy" .