PMC:7796291 / 12837-12930 JSONTXT

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    LitCovid-sentences

    {"project":"LitCovid-sentences","denotations":[{"id":"T114","span":{"begin":0,"end":93},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The meltblown filter web was comprised of very thin fibers \u003c2.5 μm in a considerable portion."}