Effects of a Preoperative Transdermal Fentanyl Patch on Proinflammatory Cytokine and Pain Levels During the Postoperative Period: A Randomized Controlled Trial.

Surg Laparosc Endosc Percutan Tech · 2019 · PMC6818975 · PMID 30676542

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did not reach statistical significanceno p-value reported

The overall levels were also low in the patch group, but did not reach statistical significance at any time point (Fig. 3 ).

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