PubMed:32176808 / 164-168 JSON TXT

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{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T28","span":{"begin":2,"end":3},"obj":"-COMMA-"}],"text":"19, "}

{"project":"LitCovid-TimeML","denotations":[{"id":"tok32","span":{"begin":2,"end":3},"obj":","}],"text":"19, "}