<http://ns.inria.fr/covid19/PMC4557825#body_text>	<http://purl.org/dc/terms/subject>	"Knights Bachelor" .
<http://ns.inria.fr/covid19/PMC4557825#body_text>	<http://purl.org/dc/terms/subject>	"Medical Subject Headings" .
<http://ns.inria.fr/covid19/PMC4557825#body_text>	<http://purl.org/dc/terms/subject>	"Menstrual cycle" .