PubMed:32141570 / 12-22 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok3","span":{"begin":6,"end":10},"obj":"CD"},{"id":"lookup1","span":{"begin":6,"end":10},"obj":"year"}],"text":"virus 2019"}