<http://ns.inria.fr/covid19/PMC5572254#body_text>	<http://purl.org/dc/terms/subject>	"Nervous tissue cells" .
<http://ns.inria.fr/covid19/PMC5572254#body_text>	<http://purl.org/dc/terms/subject>	"Differential equations" .
<http://ns.inria.fr/covid19/PMC5572254#body_text>	<http://purl.org/dc/terms/subject>	"Lists of countries" .