PMC:7386785 / 4251-4629 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T93612","span":{"begin":45,"end":46},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"neumonia on imaging, suggesting that this is a highly selected population. In an additional four studies, we were unable to assess the risk for selection bias. These factors make it very difficult to determine the diagnostic properties of these signs and symptoms from the included studies.\nWe also had concerns about the applicability of these results, since most studies inclu"}

{"project":"LitCovid-sentences","denotations":[{"id":"T38","span":{"begin":75,"end":159},"obj":"Sentence"},{"id":"T39","span":{"begin":160,"end":290},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"neumonia on imaging, suggesting that this is a highly selected population. In an additional four studies, we were unable to assess the risk for selection bias. These factors make it very difficult to determine the diagnostic properties of these signs and symptoms from the included studies.\nWe also had concerns about the applicability of these results, since most studies inclu"}