Landmark-based versus ultrasound-guided ilioinguinal/iliohypogastric nerve blocks in the treatment of chronic postherniorrhaphy groin pain: a retrospective study.

J Pain Res · 2015 · PMC4631426 · PMID 26604817

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a trend toward significanceno p-value reported

There may be a trend toward significance, but with our small patient numbers, no statically significant difference was appreciated.

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