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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 2015;33(1):36–66. doi: 10.1080/10590501.2015.1002999

Figure 1.

Figure 1

Summary odds ratios (ORs) of childhood leukemia for studies with traffic density as the indicator of traffic exposure.