PMC:7647877 / 81187-81229 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T569","span":{"begin":0,"end":42},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Ethics approval and consent to participate"}