PMC:7454258 / 56018-56177 JSONTXT

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    LitCovid-PD-CLO

    {"project":"LitCovid-PD-CLO","denotations":[{"id":"T35697","span":{"begin":75,"end":78},"obj":"http://purl.obolibrary.org/obo/CLO_0003376"}],"text":" \u003e100 educational and research institutions during 1998–2019. USDA ERS and FNS have co-sponsored the National Household Food Acquisition and Purchase Survey (F"}