PMC:7589163 / 13140-13306 JSONTXT

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{"project":"LitCovid-PubTator","denotations":[{"id":"311","span":{"begin":54,"end":62},"obj":"Species"},{"id":"321","span":{"begin":74,"end":83},"obj":"Chemical"},{"id":"332","span":{"begin":144,"end":153},"obj":"Disease"}],"attributes":[{"id":"A311","pred":"tao:has_database_id","subj":"311","obj":"Tax:9606"},{"id":"A321","pred":"tao:has_database_id","subj":"321","obj":"MESH:D014801"},{"id":"A332","pred":"tao:has_database_id","subj":"332","obj":"MESH:D003643"}],"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":"A meta-analysis of 47 studies that included 1,233,856 children found that vitamin A supplementation is associated with a reduction of all-cause mortality of 12% [33]."}