PMC:7784787 / 11584-11741 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T103","span":{"begin":0,"end":157},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"For the other mask types, the fabrics with lower penetration showed higher leakage, indicating that these masks displayed a trade-off between fabric and fit."}