PMC:6964229 / 141-312 JSONTXT

{"project":"testtesttest","denotations":[{"id":"T3","span":{"begin":60,"end":72},"obj":"Body_part"},{"id":"T4","span":{"begin":74,"end":76},"obj":"Body_part"},{"id":"T5","span":{"begin":94,"end":99},"obj":"Body_part"},{"id":"T6","span":{"begin":124,"end":129},"obj":"Body_part"}],"attributes":[{"id":"A3","pred":"uberon_id","subj":"T3","obj":"http://purl.obolibrary.org/obo/UBERON_0002135"},{"id":"A4","pred":"uberon_id","subj":"T4","obj":"http://purl.obolibrary.org/obo/UBERON_0002135"},{"id":"A5","pred":"uberon_id","subj":"T5","obj":"http://purl.obolibrary.org/obo/UBERON_0003978"},{"id":"A6","pred":"uberon_id","subj":"T6","obj":"http://purl.obolibrary.org/obo/UBERON_0003978"}],"text":"OBJECTIVES\nThe risk factors and clinical effect of elevated mitral valve (MV) gradients after valve repair for degenerative valve disease remain insufficiently understood."}