PMC:7784787 / 7974-8103 JSONTXT

{"project":"LitCovid-PubTator","denotations":[{"id":"91","span":{"begin":43,"end":56},"obj":"Chemical"}],"attributes":[{"id":"A91","pred":"tao:has_database_id","subj":"91","obj":"MESH:D011126"}],"namespaces":[{"prefix":"Tax","uri":"https://www.ncbi.nlm.nih.gov/taxonomy/"},{"prefix":"MESH","uri":"https://id.nlm.nih.gov/mesh/"},{"prefix":"Gene","uri":"https://www.ncbi.nlm.nih.gov/gene/"},{"prefix":"CVCL","uri":"https://web.expasy.org/cellosaurus/CVCL_"}],"text":"he internal filter layer being 1.0 mm 100% polypropylene. The filter covers the area of the mouth and nose but around chin, cheek"}