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APA Citation
Cheng, K., & Bawa, S. (2013). aB0517 Does smoking decrease the efficacy of anti-tumour necrosis factor-alpha therapy in patients with ankylosing spondylitis (as)? : a retrospective, case-control study.. Annals of the rheumatic diseases, 72, A947. http://access.bl.uk/ark:/81055/vdc_100136585231.0x00005f