PMC:7386785 / 43965-44395 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T426","span":{"begin":0,"end":60},"obj":"Sentence"},{"id":"T427","span":{"begin":61,"end":174},"obj":"Sentence"},{"id":"T428","span":{"begin":175,"end":279},"obj":"Sentence"},{"id":"T429","span":{"begin":280,"end":328},"obj":"Sentence"},{"id":"T430","span":{"begin":329,"end":430},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The search yielded 10,965 records after removing duplicates. The first selection resulted in 658 records that were potentially eligible for this review on signs and symptoms. After screening on title and abstract, we excluded 457 records, leaving 201 to be assessed on full text. Of these, we included 16 studies in this review. The reasons for excluding 185 records are listed in the PRISMA flow chart (see Figure 1; Moher 2009)."}