PMC:7546139 / 21185-21224 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T196","span":{"begin":0,"end":39},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"How it works and clinical effectiveness"}