Efficacy of interventions to reduce long term opioid treatment for chronic non-cancer pain: systematic review and meta-analysis.
Nicholas AveryAmy Gray McNeilageFiona F StanawayClaire Elizabeth Ashton-JamesFiona M BlythRebecca MartinAli GholamrezaeiPaul A GlarePublished in: BMJ (Clinical research ed.) (2022)
PROSPERO CRD42020140943.