PMC:7796344 / 89-153 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":6,"end":14},"obj":"Sentence"},{"id":"T3","span":{"begin":15,"end":26},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"2019\n\nAbstract\nBackground: Annually, approximately 10 million pi"}