PMC:7454258 / 121918-121999 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T654","span":{"begin":0,"end":81},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Neighborhood food environments, school meals, and retail and restaurant purchases"}