CORD-19:c6b75757f2a356c2bbc3ec1d986d17a3d0048701 / 9189-9367 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T63","span":{"begin":0,"end":178},"obj":"Sentence"},{"id":"TextSentencer_T63","span":{"begin":0,"end":178},"obj":"Sentence"},{"id":"TextSentencer_T63","span":{"begin":0,"end":178},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Comparisons between proportions of categorical variables in two independent groups were performed using the χ 2 test or Fisher's exact test, when expected frequencies were small."}

{"project":"CORD-19_Custom_license_subset","denotations":[{"id":"T63","span":{"begin":0,"end":178},"obj":"Sentence"}],"text":"Comparisons between proportions of categorical variables in two independent groups were performed using the χ 2 test or Fisher's exact test, when expected frequencies were small."}