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APA Citation
Smith, S. K., Trevena, L., Simpson, J. M., Barratt, A., Nutbeam, D., & McCaffery, K. J. (2010). a decision aid to support informed choices about bowel cancer screening among adults with low education: randomised controlled trial. BMJ, 341, . http://access.bl.uk/ark:/81055/vdc_100144723712.0x000029