PMC:7510993 / 11738-11831 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T56","span":{"begin":0,"end":93},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The explanatory factors of the regression model were compared between the four country types."}