PMC:7335697 / 63-83 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":10,"end":18},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"t cohort\n\nAbstract\nO"}