<http://ns.inria.fr/covid19/PMC3092360#body_text> <http://purl.org/dc/terms/subject> "Evaluation methods" . <http://ns.inria.fr/covid19/PMC3092360#body_text> <http://purl.org/dc/terms/subject> "Feces" . <http://ns.inria.fr/covid19/PMC3092360#body_text> <http://purl.org/dc/terms/subject> "Historical regions" .