PMC:7589389 / 895-970 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T3","span":{"begin":43,"end":44},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"l return is weaker for firms surrounded by a provincial environment with st"}