_:b57819177	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57819177	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57819176	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/cf08012c131b34b073bc10b82fcb6574b17d13b8/7> .
_:b57819176	<http://www.w3.org/ns/oa#hasSelector>	_:b57819177 .