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ArticleSchmerz (Berlin, Germany)2015

[Erratum to: Opioids for chronic non-tumor-related pain--are not opioid analgesics superior? Systematic Review and Meta-analysis of Efficacy, tolerability and safety in randomized direct comparison of opioids and non-opioid analgesia for at least 4 weeks].

P Welsch et al.PubMed ↗Publisher ↗

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[Erratum to: Opioids for chronic non-tumor-related pain--are not opioid analgesics superior? Systematic Review and Meta-analysis of Efficacy, tolerability and safety in randomized direct comparison of opioids and non-opioid analgesia for at least 4 weeks]. | OpenQuestion