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APA Citation
Rocker, G., Horton, R., Currow, D., Goodridge, D., Young, J., & Booth, S. (2009). palliation of dyspnoea in advanced COPD: revisiting a role for opioids. Thorax, 64(10), 910–915. http://access.bl.uk/ark:/81055/vdc_100135540389.0x00002a