PMC:7291971 / 54763-54765 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T1108","span":{"begin":0,"end":2},"obj":"CHEBI:34018;CHEBI:34018"},{"id":"T28492","span":{"begin":0,"end":2},"obj":"CHEBI:34018;CHEBI:34018"}],"text":"4-"}