PMC:7543369 / 17536-17654 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T166","span":{"begin":0,"end":118},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The basic principle of covering should be multilayer donning and doffing to minimize the possibility of contamination."}