_:b57545936	<http://www.w3.org/ns/oa#hasSelector>	_:b57545937 .
_:b57545937	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57545937	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57545936	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/4519998f22e00e318090334979b5d837a0e10da4/3> .