_:b57540880	<http://www.w3.org/ns/oa#hasSelector>	_:b57540881 .
_:b57540881	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57540880	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/791db7d430c9e0e92d5b08742d3075c9d71f0d38/4> .
_:b57540881	<http://www.w3.org/ns/oa#exact>	"cardiac biomarkers" .