CORD-19:4abc50cfc81265083d4cb2aed0a493bb704d0b5b / 38284-38376 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T189","span":{"begin":0,"end":92},"obj":"Sentence"},{"id":"T97836","span":{"begin":0,"end":92},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"A number of improvements have been made to increase the safety and efficacy of DNA vaccines."}