PMC:7265874 / 48-69 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":6,"end":20},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"osis\n\nTo the Editor:\n"}