PMC:7405836 / 99645-99727 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T689","span":{"begin":0,"end":82},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Still, no fool-proof clinical trials have been published (194, 196, 197, 261–272)."}