<http://ns.inria.fr/covid19/PMC3993894#title>	<http://purl.org/dc/terms/subject>	"Medicinal chemistry" .
<http://ns.inria.fr/covid19/PMC3993894#title>	<http://purl.org/dc/terms/subject>	"Nephrotoxins" .
<http://ns.inria.fr/covid19/PMC3993894#title>	<http://purl.org/dc/terms/subject>	"Brands that became generic" .