<http://ns.inria.fr/covid19/PMC7110364#body_text> <http://purl.org/dc/terms/subject> "Indoles" . <http://ns.inria.fr/covid19/PMC7110364#body_text> <http://purl.org/dc/terms/subject> "Nitrogen(\u22123) compounds" . <http://ns.inria.fr/covid19/PMC7110364#body_text> <http://purl.org/dc/terms/subject> "Medical mnemonics" .