PMC:7796344 / 7335-7538 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"51","span":{"begin":103,"end":107},"obj":"Disease"},{"id":"52","span":{"begin":113,"end":121},"obj":"Disease"},{"id":"53","span":{"begin":122,"end":131},"obj":"Disease"}],"attributes":[{"id":"A51","pred":"tao:has_database_id","subj":"51","obj":"MESH:D045169"},{"id":"A52","pred":"tao:has_database_id","subj":"52","obj":"MESH:C000657245"},{"id":"A53","pred":"tao:has_database_id","subj":"53","obj":"MESH:D007239"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"However, a recent systematic review of 21 studies by Liang et al. (2020) found “the risk of influenza, SARS, and COVID-19 infection were reduced by 45%, 74%, and 96% by wearing masks, respectively” [20]."}

{"project":"LitCovid-sentences","denotations":[{"id":"T45","span":{"begin":0,"end":203},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"However, a recent systematic review of 21 studies by Liang et al. (2020) found “the risk of influenza, SARS, and COVID-19 infection were reduced by 45%, 74%, and 96% by wearing masks, respectively” [20]."}