PMC:7796041 / 6878-7062 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T65","span":{"begin":0,"end":157},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Dichotomous variables are presented as absolute and relative frequencies and were compared applying the Fisher Boschloo-test from the R package “Exact” [11].\nFor the purpose of selecti"}