PMC:7050133 / 18204-18310 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T105","span":{"begin":0,"end":106},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"After declaring the outbreak on January 20, information revealed by F ′  ′ (x) differed much from F ′ (x)."}