PMC:7405836 / 653-771 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T7","span":{"begin":75,"end":83},"obj":"Sentence"},{"id":"T8","span":{"begin":84,"end":91},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"an transmission, the possibility of other routes should not be ruled out.\n\nAbstract\nSUMMARY\nIn recent decades, several"}