PMC:7291971 / 89-102 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T4","span":{"begin":3,"end":6},"obj":"GO:0008541"},{"id":"T85030","span":{"begin":3,"end":6},"obj":"GO:0008541"}],"text":"NA cap guanin"}