PMC:7454258 / 86-161 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":40,"end":48},"obj":"Sentence"},{"id":"T3","span":{"begin":49,"end":57},"obj":"Sentence"},{"id":"T4","span":{"begin":59,"end":69},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" federal research effort and authority\n\nAbstract\nABSTRACT\n\nBackground\nThe U"}