PMC:7543426 / 81-173 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T3","span":{"begin":48,"end":56},"obj":"Sentence"},{"id":"T4","span":{"begin":57,"end":65},"obj":"Sentence"},{"id":"T5","span":{"begin":67,"end":77},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" Study of Cases With and Without Comorbidities\n\nAbstract\nAbstract\n\nBackground\nDescriptions o"}