PMC:7299399 / 2773-2953 JSONTXT

{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T11","span":{"begin":124,"end":128},"obj":"Chemical"}],"attributes":[{"id":"A11","pred":"chebi_id","subj":"T11","obj":"http://purl.obolibrary.org/obo/CHEBI_23888"}],"text":"ons, beginning in 1990.2−4 Efforts were then underway to improve the safety of viral vectors, including developing nonviral drug-delivery systems inspired by the natural capabiliti"}

{"project":"2_test","denotations":[{"id":"32519842-11642817-158445","span":{"begin":23,"end":24},"obj":"11642817"},{"id":"32519842-32341506-158446","span":{"begin":25,"end":26},"obj":"32341506"}],"text":"ons, beginning in 1990.2−4 Efforts were then underway to improve the safety of viral vectors, including developing nonviral drug-delivery systems inspired by the natural capabiliti"}