PMC:7796058 / 45732-45840 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T318","span":{"begin":0,"end":108},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"On the other hand, it was still a challenge working with BLE signals that are interfered with by structures."}