PMC:7781500 / 114-151 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":0,"end":34},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"A Cross-Sectional Analytical Study\n\nA"}