? 2023 Elsevier LtdJones CMP, Day RO, Koes BW, et al. Opioid analgesia for acute low back pain and neck pain (the OPAL trial): a randomised placebo-controlled trial. Lancet 2023; 402: 304–12—In the Summary and Acknowledgments of this Article, the funders should have been Australia's National Health and Medical Research Council, University of Sydney Faculty of Medicine and Health, and ReturnToWorkSA. This correction have been made to the online version as of Aug 17, 2023.
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