Correction: Predictors of opioid efficacy in patients with chronic pain: A prospective multicenter observational cohort study.

Grosen, Kasper; Olesen, Anne E; Gram, Mikkel; Jonsson, Torsten; Kamp-Jensen, Michael; Andresen, Trine; Nielsen, Christian; Pozlep, Gorazd et al. · PLoS One · 2019

prospective_cohort · Level II

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Also identified by DOI 10.1371/journal.pone.0224779 and PMC identifier 6821103.
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Abstract

[This corrects the article DOI: 10.1371/journal.pone.0171723.].

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