PubMed:32212512 / 0-22 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok1","span":{"begin":0,"end":13},"obj":"NNP"},{"id":"tok2","span":{"begin":14,"end":22},"obj":"NNP"}],"text":"Retrospective Analysis"}