PMC:4913875 / 2394-2641 JSONTXT

{"project":"testtesttest","denotations":[{"id":"T16","span":{"begin":0,"end":5},"obj":"Body_part"},{"id":"T17","span":{"begin":79,"end":91},"obj":"Body_part"},{"id":"T18","span":{"begin":119,"end":124},"obj":"Body_part"}],"attributes":[{"id":"A16","pred":"uberon_id","subj":"T16","obj":"http://purl.obolibrary.org/obo/UBERON_0003978"},{"id":"A17","pred":"uberon_id","subj":"T17","obj":"http://purl.obolibrary.org/obo/UBERON_0002137"},{"id":"A18","pred":"uberon_id","subj":"T18","obj":"http://purl.obolibrary.org/obo/UBERON_0003978"}],"text":"Valve replacement remains the last therapeutic option for patients with severe aortic valve dysfunction unsuitable for valve reconstruction. Biological and mechanical prostheses are the most frequently used substitutes in clinical practice [1, 2]."}