PMC:7176025 / 42-52 JSONTXT

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T1","span":{"begin":1,"end":8},"obj":"GO:0005634"},{"id":"T63515","span":{"begin":1,"end":8},"obj":"GO:0005634"}],"text":" nucleic a"}