PMC:7283670 / 92582-92660 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T797","span":{"begin":0,"end":78},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Placebo comparator: placebo Not applicable Primary (approximately 100 days):"}