PMC:7111504 / 79-140 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":5,"end":16},"obj":"Sentence"},{"id":"T4","span":{"begin":18,"end":26},"obj":"Sentence"},{"id":"T5","span":{"begin":27,"end":38},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"iew: 3 approved]\n\nAbstract\nBackground: The newly identified c"}