PMC:7696151 / 5129-5236 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T40","span":{"begin":4,"end":6},"obj":"Sentence"},{"id":"T41","span":{"begin":7,"end":30},"obj":"Sentence"},{"id":"T42","span":{"begin":32,"end":36},"obj":"Sentence"},{"id":"T43","span":{"begin":37,"end":51},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"].\n\n2. Results and Discussions\n\n2.1. Study Analysis\nThe initial survey of the literature identified 2756 re"}