PMC:7014669 / 148-224 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T2","span":{"begin":44,"end":56},"obj":"http://purl.obolibrary.org/obo/OBI_0000245"}],"text":"erday, on 30 January 2020, the World Health Organization (WHO) declared the "}