<http://ns.inria.fr/covid19/PMC7338106#body_text>	<http://purl.org/dc/terms/subject>	"Historically black hospitals in the United States" .
<http://ns.inria.fr/covid19/PMC7338106#body_text>	<http://purl.org/dc/terms/subject>	"Public services of the United States" .
<http://ns.inria.fr/covid19/PMC7338106#body_text>	<http://purl.org/dc/terms/subject>	"Primary care" .