PMC:7780429 / 8791-9113 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T56","span":{"begin":0,"end":322},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"These same analyses, shown as a cross between variables by means of contingency tables or comparison of averages, have also been elaborated as a preamble to the statistical tests that have been carried out to corroborate if there is a relationship between different variables, thus showing the hypotheses to be contrasted."}