PMC:7784787 / 3837-3915 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T34","span":{"begin":0,"end":78},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"In fact, to our knowledge, a standard test for outward leakage does not exist."}