PMC:7784787 / 5836-5987 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T48","span":{"begin":71,"end":90},"obj":"Sentence"},{"id":"T49","span":{"begin":91,"end":135},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"performance without diminishing the breathability of the mask fabric.\n\nMaterials \u0026 methods\nThe experimental setup is shown in Figure 1. The aerosol con"}