_:b57506308	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/dcd41f49e07917307a078489eb212c4b1c3a201b/1> .
_:b57506308	<http://www.w3.org/ns/oa#hasSelector>	_:b57506309 .
_:b57506309	<http://www.w3.org/ns/oa#exact>	"secreting cells" .
_:b57506309	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .