_:b57907400	<http://www.w3.org/ns/oa#hasSelector>	_:b57907401 .
_:b57907400	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b43cd773a6c4e6e4b44de20f5f7ab8e203923d9c/0> .
_:b57907401	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57907401	<http://www.w3.org/ns/oa#exact>	"Risk ratios" .