_:b57049017	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57049017	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57049016	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/bdc93291835ac482e24ece71c9cb63e5418807e7/1> .
_:b57049016	<http://www.w3.org/ns/oa#hasSelector>	_:b57049017 .