PMC:1087847 / 66-90 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T270","span":{"begin":0,"end":1},"obj":"sentence"},{"id":"T271","span":{"begin":11,"end":21},"obj":"sentence"},{"id":"T272","span":{"begin":11,"end":21},"obj":"NN"}],"text":"\n\nAbstract\nBackground\nAn"}