<http://ns.inria.fr/covid19/PMC7274741#body_text>	<http://purl.org/dc/terms/subject>	"ATSC" .
<http://ns.inria.fr/covid19/PMC7274741#body_text>	<http://purl.org/dc/terms/subject>	"Differential equations" .
<http://ns.inria.fr/covid19/PMC7274741#body_text>	<http://purl.org/dc/terms/subject>	"Sets of real numbers" .
<http://ns.inria.fr/covid19/PMC7274741#body_text>	<http://purl.org/dc/terms/subject>	"Fuzzy logic" .