PMC:7160614 / 2560-2649 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T27","span":{"begin":31,"end":43},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"vailable to authorized users.\n\nIntroduction\nOn January 30, 2020, the World Health Organiz"}