_:b57560888	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/569f5c13c3109817f6ce0882e4129f31e83cfd29/2> .
_:b57560889	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57560888	<http://www.w3.org/ns/oa#hasSelector>	_:b57560889 .
_:b57560889	<http://www.w3.org/ns/oa#exact>	"immunoglobulin A" .
_:b57560889	<http://www.w3.org/ns/oa#exact>	"IgA" .