PMC:7386785 / 86365-86480 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T570","span":{"begin":94,"end":99},"obj":"http://purl.obolibrary.org/obo/UBERON_0000473"}],"text":"Were the reference standard results interpreted without knowledge of the results of the index tests? Unclear    "}

{"project":"LitCovid-sentences","denotations":[{"id":"T879","span":{"begin":0,"end":100},"obj":"Sentence"},{"id":"T880","span":{"begin":102,"end":115},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Were the reference standard results interpreted without knowledge of the results of the index tests? Unclear    "}