_:b57296636	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0dc604b0982055e74bfdf5e79d15784d967b2da0/0> .
_:b57296637	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57296636	<http://www.w3.org/ns/oa#hasSelector>	_:b57296637 .
_:b57296637	<http://www.w3.org/ns/oa#exact>	"humoral immune responses" .