PMC:7299399 / 76166-76346 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T637","span":{"begin":150,"end":151},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"Particles around 300 nm in diameter are least subject to these three removal mechanisms, and they are considered the “most penetrating” particles for a majority of filter types.204"}

{"project":"LitCovid-sentences","denotations":[{"id":"T302","span":{"begin":0,"end":180},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Particles around 300 nm in diameter are least subject to these three removal mechanisms, and they are considered the “most penetrating” particles for a majority of filter types.204"}