PMC:7784787 / 597-713 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T11","span":{"begin":0,"end":116},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The curved laser sheet highlights both penetration through the mask fabric and leakage around the edges of the mask."}