PMC:7799377 / 45605-45759 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T304","span":{"begin":0,"end":154},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This article is based on previously conducted studies and does not contain any studies with human participants or animals performed by any of the authors."}