PMC:7796041 / 18159-18314 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T160","span":{"begin":0,"end":155},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"However, due to the high number of missing values, LVEF was omitted from the final logistic regression model to ensure reliability of statistical analyses."}