PMC:7796058 / 22900-23011 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T139","span":{"begin":0,"end":111},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"For example, the most commonly used areas are public rooms, corridors, and doors, and thus present higher risk."}