PMC:7795804 / 65-106 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":21,"end":29},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"oss-Sectional Study\n\nAbstract\nThe restric"}