PMC:7675688 / 54-96 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":4,"end":14},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ct\n\nBackground\nAn outbreak of coronavirus "}