PMC:7784824 / 14353-14366 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T163","span":{"begin":0,"end":13},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"59% n.a. n.a."}