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  1. 1

    Sample selection in the estimation of air bags and seat belt effectiveness per Levitt, Steven D.

    Publicat 1999
    Llibre

    Sample selection in the estimation of air bags and seat belt effectiveness
  2. 2

    Estimating the effect of alcohol on driver risk using only fatal accident statistics per Levitt, Steven D.

    Publicat 1999
    Llibre

    Estimating the effect of alcohol on driver risk using only fatal accident statistics

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