Effect of Pregnane X Receptor<sup>*</sup>1B genetic polymorphisms on postoperative analgesia with fentanyl in Chinese patients undergoing gynecological surgery.

BMC Med Genet · 2016 · PMC5120516 · PMID 27876007

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a decreasing trendno p-value reported

However, a decreasing trend of the fentanyl consumption during the first 24 h postoperatively among the PXR * 1B haplotypes was found.

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