<http://ns.inria.fr/covid19/PMC7274589#body_text>	<http://purl.org/dc/terms/subject>	"Vascular procedures" .
<http://ns.inria.fr/covid19/PMC7274589#body_text>	<http://purl.org/dc/terms/subject>	"Headaches" .
<http://ns.inria.fr/covid19/PMC7274589#body_text>	<http://purl.org/dc/terms/subject>	"Clinical research" .
<http://ns.inria.fr/covid19/PMC7274589#body_text>	<http://purl.org/dc/terms/subject>	"Nonsteroidal anti-inflammatory drugs" .