22 resultados para Socioeconomic factors.

em University of Michigan


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National Highway Traffic Safety Administration, Washington, D.C.

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Federal Highway Administration, Office of Highway Policy Information, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Federal Highway Administration, Highway Statistics Division, Washington, D.C.

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Transportation Department, Office of University Research, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Mode of access: Internet.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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National Highway Traffic Safety Administration, Washington, D.C.

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Federal Highway Administration, Office of Research and Development, Washington, D.C.

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National Highway Traffic Safety Administration, Office of State Vehicle Programs, Washington, D.C.