PubMed:32217650 / 19-30 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok4","span":{"begin":1,"end":7},"obj":"NN"},{"id":"tok5","span":{"begin":8,"end":10},"obj":"IN"}],"text":" impact on "}