PMC:7061470 / 684-772 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T9","span":{"begin":34,"end":70},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"llance have been applied as well. Some improvements can still be made. It is necessary t"}