PMC:7291971 / 77426-77431
Annnotations
LitCovid-PMC-OGER-BB
{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T1556","span":{"begin":0,"end":5},"obj":"CHEBI:17939;CHEBI:17939"},{"id":"T22971","span":{"begin":0,"end":5},"obj":"CHEBI:17939;CHEBI:17939"}],"text":"purin"}