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. 2019 May 23;12:1673–1684. doi: 10.2147/JPR.S191183

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© 2019 Li et al.

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Postoperative mean opioid consumption (A), cumulative opioid consumption (B) and pain intensity (C) of study participants (n=106). Data are presented as mean±SD.

Abbreviation: NRS, numeric rating scale.