PMC:7650537 / 21497-21611 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T170","span":{"begin":0,"end":114},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Recently, presence of neutralizing antibodies was found to be associated with protection against reinfection [29]."}