PMC:7534206 / 74-98 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":3,"end":11},"obj":"Sentence"},{"id":"T3","span":{"begin":12,"end":22},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"9\n\nAbstract\nBackground\nT"}