> top > docs > PMC:7160614 > spans > 5368-5519 > annotations

PMC:7160614 / 5368-5519 JSONTXT

Annnotations TAB JSON ListView MergeView

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T48 0-151 Sentence denotes Ethical approvals by the institutional review boards were obtained for this retrospective analysis, and the need to obtain informed consent was waived.