_:b58001052 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/fa02a3f41850de40403ef867e2c83ba488836011/1> . _:b58001052 <http://www.w3.org/ns/oa#hasSelector> _:b58001053 . _:b58001053 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b58001053 <http://www.w3.org/ns/oa#exact> "aspartate aminotransferase" . _:b58001053 <http://www.w3.org/ns/oa#exact> "AST" .