PMC:7543267 / 52173-52332 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T388","span":{"begin":0,"end":159},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The mediation effect was significant in the U.S. sample but not the Australia sample, while the moderation effect was significant in the Australia sample only."}