PMC:7454258 / 91-159 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":35,"end":43},"obj":"Sentence"},{"id":"T3","span":{"begin":44,"end":52},"obj":"Sentence"},{"id":"T4","span":{"begin":54,"end":64},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ral research effort and authority\n\nAbstract\nABSTRACT\n\nBackground\nThe"}