<http://ns.inria.fr/covid19/PMC7115259#body_text> <http://purl.org/dc/terms/subject> "Primary care" . <http://ns.inria.fr/covid19/PMC7115259#body_text> <http://purl.org/dc/terms/subject> "Respirators" . <http://ns.inria.fr/covid19/PMC7115259#body_text> <http://purl.org/dc/terms/subject> "Occupational Safety and Health Administration" . <http://ns.inria.fr/covid19/PMC7115259#body_text> <http://purl.org/dc/terms/subject> "Physical chemistry" .