PubMed:32243238 / 140-154 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok25","span":{"begin":0,"end":5},"obj":"NN"},{"id":"tok26","span":{"begin":6,"end":14},"obj":"NN"}],"text":"chain reaction"}