Emergency medicine journal : EMJ
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Review Meta Analysis
Pulmonary embolism rule-out criteria (PERC) in pulmonary embolism--revisited: A systematic review and meta-analysis.
To perform a systematic review and meta-analysis including all the current studies to assess the accuracy of pulmonary embolism rule-out criteria (PERC) in ruling out pulmonary embolism (PE). ⋯ Because of the high sensitivity and low negative likelihood ratio, PERC rule can be used confidently in clinically low probability population settings.