PMC:7386785 / 2848-2924 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T28","span":{"begin":24,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"the high risk of bias.\n\nMain results\nWe identified 16 studies including 7706"}