_:b57621696	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/fa28199c70227aa7189f847a1ee386cd240fdade/2> .
_:b57621697	<http://www.w3.org/ns/oa#exact>	"neutralizing antibody titer" .
_:b57621697	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57621696	<http://www.w3.org/ns/oa#hasSelector>	_:b57621697 .