PMC:7784787 / 578-713 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T10","span":{"begin":6,"end":18},"obj":"Sentence"},{"id":"T11","span":{"begin":19,"end":135},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"ypes. Conclusions: The curved laser sheet highlights both penetration through the mask fabric and leakage around the edges of the mask."}