PMC:7347402 / 174-210 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":12,"end":20},"obj":"Sentence"},{"id":"T3","span":{"begin":21,"end":36},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"tive study\n\nAbstract\nAims/hypothesis"}