PMC:7456455 / 49-73 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":3,"end":22},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"n: Assay and rationale\n\n"}