PMC:7172848 / 69-83 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":0,"end":14},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"To the Editor,"}