PMC:7386785 / 5098-5458 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T44","span":{"begin":58,"end":78},"obj":"Sentence"},{"id":"T45","span":{"begin":79,"end":288},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"signs and symptoms in different settings and age groups.\n\nAuthors' conclusions\nThe individual signs and symptoms included in this review appear to have very poor diagnostic properties, although this should be interpreted in the context of selection bias and heterogeneity between studies. Based on currently available data, neither absence nor presence of sign"}