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Criteria to evaluate the quality of included studies
| Quality items | Signaling questions |
|---|---|
| Type of cohort study | Does the study have a prospective or retrospective design? |
| Method of patient selection | Was a consecutive, randomly selected, or obviously representative series of patients included? |
| Patient spectrum | Were selection criteria for CTPA reported? |
| Blinded assessment of outcome | Were CTPA interpreters blinded to clinical information (i.e., study purpose or COVID-19 status of patients)? |
