PMC:7386785 / 120598-120727 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T1498","span":{"begin":0,"end":129},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Are there concerns that the target condition as defined by the reference standard does not match the question?     Low concern"}