PMC:7376974 / 21138-21177 JSONTXT

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    LitCovid-PD-CHEBI

    {"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T221","span":{"begin":6,"end":14},"obj":"Chemical"}],"attributes":[{"id":"A221","pred":"chebi_id","subj":"T221","obj":"http://purl.obolibrary.org/obo/CHEBI_33839"}],"text":"ionic polymers and the negatively charg"}