PubMed:32216961 / 20-40 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok3","span":{"begin":3,"end":6},"obj":"CC"},{"id":"tok4","span":{"begin":7,"end":17},"obj":"JJ"}],"text":"ns and diagnostic va"}