PMC:7796041 / 6748-6877 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T64","span":{"begin":45,"end":129},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"le = P75) or mean ± standard deviation (SD). The t-test or Mann-Whitney-Wilcoxon-test were applied for between-group comparisons."}