PMC:7600245 / 169-305 JSONTXT

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T1","span":{"begin":87,"end":101},"obj":"Chemical"}],"attributes":[{"id":"A1","pred":"chebi_id","subj":"T1","obj":"http://purl.obolibrary.org/obo/CHEBI_52217"}],"text":") pandemic continues to challenge health care systems around the world. Scientists and pharmaceutical companies have promptly responded "}