PMC:7510743 / 2187-2307 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T16","span":{"begin":0,"end":120},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"This study was approved by the institutional review board at SMG-SNU Boramae Medical Center; written consent was waived."}