PubMed:32154135 / 1908-1912 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok390","span":{"begin":0,"end":4},"obj":"CD"},{"id":"lookup45","span":{"begin":0,"end":4},"obj":"year"}],"text":"2019"}