<http://ns.inria.fr/covid19/PMC7268272#body_text>	<http://purl.org/dc/terms/subject>	"Port cities and towns in Germany" .
<http://ns.inria.fr/covid19/PMC7268272#body_text>	<http://purl.org/dc/terms/subject>	"Europe" .
<http://ns.inria.fr/covid19/PMC7268272#body_text>	<http://purl.org/dc/terms/subject>	"Primary care" .