PMC:7796041 / 5172-5345 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T50","span":{"begin":110,"end":114},"obj":"Sentence"},{"id":"T51","span":{"begin":115,"end":130},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"nformed and written consent was not required in accordance with the statement of the local ethics committee.\n\n2.2. Data Collection\nAll available clinical records including p"}