PMC:7796291 / 20875-20989 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T171","span":{"begin":0,"end":114},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The particle capture of an electret filter is contributed by both mechanical and electrostatic capture mechanisms."}