_:b57005849	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57005849	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57005848	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9bc9fff56cbd597d71e1e7044eeefc8debdc4578/0> .
_:b57005848	<http://www.w3.org/ns/oa#hasSelector>	_:b57005849 .