<http://ns.inria.fr/covid19/PMC7179380#body_text>	<http://purl.org/dc/terms/subject>	"Global Positioning System" .
<http://ns.inria.fr/covid19/PMC7179380#body_text>	<http://purl.org/dc/terms/subject>	"Physical chemistry" .
<http://ns.inria.fr/covid19/PMC7179380#body_text>	<http://purl.org/dc/terms/subject>	"Health in the London Borough of Camden" .