<http://ns.inria.fr/covid19/PMC4435438#body_text>	<http://purl.org/dc/terms/subject>	"Constipation" .
<http://ns.inria.fr/covid19/PMC4435438#body_text>	<http://purl.org/dc/terms/subject>	"Medical mnemonics" .
<http://ns.inria.fr/covid19/PMC4435438#body_text>	<http://purl.org/dc/terms/subject>	"Salts and esters of carboxylic acids" .