PMC:7075079 / 10365-10481 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T93","span":{"begin":0,"end":116},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Path analysis by the structural equation model (SEM) was performed to measure the associations and their importance."}