_:b57904548	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7d872a075b97a657eea4aebeae57fba6246a9f73/1> .
_:b57904549	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57904548	<http://www.w3.org/ns/oa#hasSelector>	_:b57904549 .
_:b57904549	<http://www.w3.org/ns/oa#exact>	"quality of care" .