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APA Citation
Doherty, L., Fenton, K. A., Jones, J., Paine, T. C., Higgins, S. P., Williams, D., & Palfreeman, A. (2002). syphilis: old problem, new strategy. BMJ, 325(7356), 153–156. http://access.bl.uk/ark:/81055/vdc_100177569183.0x000033