_:b57233105	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57233104	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/284d6d07a599d59d419361745267949e54f55f39/0> .
_:b57233105	<http://www.w3.org/ns/oa#exact>	"serum creatinine" .
_:b57233104	<http://www.w3.org/ns/oa#hasSelector>	_:b57233105 .