<http://ns.inria.fr/covid19/PMC7295322#body_text>	<http://purl.org/dc/terms/subject>	"History of immigration to the United States" .
<http://ns.inria.fr/covid19/PMC7295322#body_text>	<http://purl.org/dc/terms/subject>	"Protective gear" .
<http://ns.inria.fr/covid19/PMC7295322#body_text>	<http://purl.org/dc/terms/subject>	"Primary care" .