PMC:7796291 / 1517-1642 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T11","span":{"begin":81,"end":83},"obj":"Sentence"},{"id":"T12","span":{"begin":84,"end":96},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"fic background on the effect of disinfection treatment methods for respirators.\n\n1. Introduction\nThe demand for face filterin"}