PMC:7291971 / 12514-12519 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T287","span":{"begin":2,"end":3},"obj":"CHEBI:75508;CHEBI:75508"},{"id":"T288","span":{"begin":3,"end":4},"obj":"CHEBI:82321;CHEBI:82321"},{"id":"T289","span":{"begin":4,"end":5},"obj":"CHEBI:50217;CHEBI:50217"}],"text":"e 5′-"}