_:b57774696	<http://www.w3.org/ns/oa#hasSelector>	_:b57774697 .
_:b57774697	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57774696	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d117216a2486cd0913868b2740c57dc74ce3069f/0> .
_:b57774697	<http://www.w3.org/ns/oa#exact>	"pressure ulcers" .