<http://ns.inria.fr/covid19/PMC7267369#title>	<http://purl.org/dc/terms/subject>	"2019 disasters in China" .
<http://ns.inria.fr/covid19/PMC7267369#title>	<http://purl.org/dc/terms/subject>	"2019 health disasters" .
<http://ns.inria.fr/covid19/PMC7267369#title>	<http://purl.org/dc/terms/subject>	"Head and neck cancer" .