Caution, Drivers! Children Present: Traffic, Pollution, and Infant Health
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Since the Clean Air Act Amendments of 1990 (CAAA), atmospheric concentration of local pollutants has fallen drastically. A natural question is whether further reductions will yield additional health benefits. We further this research by addressing two related research questions: (1) what is the
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美国国家经济研究局创建时间：
2011-07-01
