PMC:7784830 / 4281-4326 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T42","span":{"begin":0,"end":45},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"A layer might or might not contain API’ [14]."}