PMC:7558914 / 2108-2139 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T17","span":{"begin":7,"end":9},"obj":"Sentence"},{"id":"T18","span":{"begin":10,"end":22},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ence.\n\n1. Introduction\nThe glob"}