_:b56754121	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56754120	<http://www.w3.org/ns/oa#hasSelector>	_:b56754121 .
_:b56754121	<http://www.w3.org/ns/oa#exact>	"overall survival" .
_:b56754120	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/ee7f2ea0e04f0ae57ca964e0cce3535a5345accd/6> .