PMC:7386785 / 39616-39670
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T389","span":{"begin":0,"end":53},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Did all patients receive the same reference standard? "}