PMC:7784787 / 45-112 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T2","span":{"begin":16,"end":24},"obj":"Sentence"},{"id":"T3","span":{"begin":25,"end":29},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"fabric and fit\n\nAbstract\nAim: Face masks are an important addition "}