PMC:7796291 / 6645-7028 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T51","span":{"begin":0,"end":288},"obj":"Sentence"},{"id":"T52","span":{"begin":289,"end":383},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Metal nose clips of respirators were eliminated, and the respirators were exposed to microwave irradiation with 750 W power (MR-280M, LG Electronics, Seoul, Korea); for 1 min, the outer side was directed to the irradiation, then, for 1 min, the inner side was directed to the irradiation. All treated samples were stored for 12 h under ambient temperature before the filtration test."}