PMC:7057189 / 7903-7942 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T59","span":{"begin":0,"end":33},"obj":"Sentence"},{"id":"T60","span":{"begin":34,"end":39},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Declaration of competing interest\nNone."}