PMC:7143707 / 7877-7919 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T60","span":{"begin":0,"end":42},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Some of the styles of N95 masks available:"}