_:b57211832	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9fcbafc0eeffbfa061a8daf23f075ac871aaee02/4> .
_:b57211833	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57211833	<http://www.w3.org/ns/oa#exact>	"humoral responses" .
_:b57211832	<http://www.w3.org/ns/oa#hasSelector>	_:b57211833 .