PMC:7166029 / 10559-10608 JSONTXT

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T90","span":{"begin":11,"end":23},"obj":"Chemical"},{"id":"T91","span":{"begin":19,"end":23},"obj":"Chemical"}],"attributes":[{"id":"A90","pred":"chebi_id","subj":"T90","obj":"http://purl.obolibrary.org/obo/CHEBI_33696"},{"id":"A91","pred":"chebi_id","subj":"T91","obj":"http://purl.obolibrary.org/obo/CHEBI_37527"}],"text":"Changes of nucleic acid positive cases with time."}

{"project":"LitCovid-PMC-OGER-BB","denotations":[{"id":"T207","span":{"begin":11,"end":18},"obj":"GO:0005634"},{"id":"T45757","span":{"begin":24,"end":32},"obj":"SP_7"}],"text":"Changes of nucleic acid positive cases with time."}