PMC:7283670 / 35456-35496 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T301","span":{"begin":0,"end":40},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"7 (9%), any obvious history of exposure:"}