<http://ns.inria.fr/covid19/PMC7428752#body_text>	<http://purl.org/dc/terms/subject>	"Constipation" .
<http://ns.inria.fr/covid19/PMC7428752#body_text>	<http://purl.org/dc/terms/subject>	"Medical mnemonics" .
<http://ns.inria.fr/covid19/PMC7428752#body_text>	<http://purl.org/dc/terms/subject>	"1834 in science" .