PMC:7796291 / 6928-7080 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T52","span":{"begin":6,"end":100},"obj":"Sentence"},{"id":"T53","span":{"begin":102,"end":108},"obj":"Sentence"},{"id":"T54","span":{"begin":109,"end":117},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"tion. All treated samples were stored for 12 h under ambient temperature before the filtration test.\n\n2.2.2. Oven-Dry\nRespirators were dried at 90 °C fo"}