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  3. Effect of 20 mph traffic speed zones on road injuries in London, 1986-2006: controlled interrupted time series analysis
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Research

Effect of 20 mph traffic speed zones on road injuries in London, 1986-2006: controlled interrupted time series analysis

BMJ 2009; 339 doi: https://doi.org/10.1136/bmj.b4469 (Published 11 December 2009) Cite this as: BMJ 2009;339:b4469
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