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In a previous review, we reported that ankle brachial index (ABI) ≤ 0.90 could reliably identify patients with peripheral artery disease (PAD). Since then, more studies have been published which may extend the power of a meta-analysis of studies of diagnostic accuracy of the ABI. MEDLINE and several other databases were searched for studies on sensitivity and specificity of using ABI ≤ 0.90 for PAD...
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