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APA Citation
Lin, C., Kwok, W. S., Hsieh, A., Ballantyne, J., Blyth, F., Deyo, R., Korff, M. v., & Gnjidic, D. (2019). 87 Opioid deprescribing in people with chronic non-cancer pain – a systematic review of international guidelines. BMJ evidence-based medicine, 24, A49. http://access.bl.uk/ark:/81055/vdc_100135148757.0x000001