PubMed:32217556 / 1738-1746 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok360","span":{"begin":0,"end":8},"obj":"VBD"},{"id":"event16","span":{"begin":0,"end":8},"obj":"OCCURRENCE"}],"text":"observed"}