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. 2018 Feb 28;126(2):024005. doi: 10.1289/EHP2948

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Photograph of highway traffic near a house outside Los Angeles — Much more study is necessary before concluding that exposure to traffic-related pollution is a risk factor for dying during TB treatment. However, if this hypothesis is proven, it might lead to individual-level interventions to improve the success of treatment. It also could provide additional support for measures to reduce population-wide exposures to traffic-related pollution. Image: © Chones/Shutterstock.