_:b57771544	<http://www.w3.org/ns/oa#hasSelector>	_:b57771545 .
_:b57771545	<http://www.w3.org/ns/oa#exact>	"serum" .
_:b57771545	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57771544	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b372f06397c2cf39ec1ed6109bcb45044132976d/19> .