PMC:7291971 / 43803-43810 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T909","span":{"begin":4,"end":7},"obj":"CHEBI:36927;CHEBI:36927"},{"id":"T29671","span":{"begin":4,"end":7},"obj":"CHEBI:36927;CHEBI:36927"}],"text":"H). 13C"}