CORD-19:35349bb1fc9290338907b7d7f104c9db3951163b / 245585-245796 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T1776","span":{"begin":0,"end":211},"obj":"Sentence"},{"id":"T71291","span":{"begin":0,"end":211},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Only 19 studies were designed as prospective studies, including one non-blinded randomized controlled clinical trial, one non-blinded non-randomized controlled clinical trial and 17 uncontrolled clinical trials."}