PMC:7738161 / 10452-10614 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T76","span":{"begin":4,"end":146},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"el. In this case-specific data set there were only seven cases reported before February 29, and a decline in reported cases after April 2 (Fig 1). Therefore we us"}