_:b57511812	<http://www.w3.org/ns/oa#hasSelector>	_:b57511813 .
_:b57511812	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6f9e84358985c23953cba5e683faf668fa6333f7/1> .
_:b57511813	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57511813	<http://www.w3.org/ns/oa#exact>	"postoperative" .