PMC:7291971 / 63734-63736 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T1284","span":{"begin":0,"end":2},"obj":"CHEBI:75508;CHEBI:75508"},{"id":"T41796","span":{"begin":0,"end":2},"obj":"CHEBI:75508;CHEBI:75508"}],"text":"5′"}