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    Direct Observation of Safety Belt Use in Michigan: Summer 1992

    F. M. Streff / L. J. Molnar / C. Christoff | NTIS | 1993

    Michigan Omnibus State Traffic Safety Survey: Fall 1990

    F. M. Streff / L. J. Molnar / R. H. Schultz | NTIS | 1991

    Michigan OMNIBUS State Traffic Safety Survey: Fall 1992

    F. M. Streff / L. J. Molnar / R. H. Schultz et al. | NTIS | 1993

    Michigan Omnibus State Safety Survey: Fall 1987

    A. C. Wagenaar / L. J. Molnar / F. M. Streff et al. | NTIS | 1988

    Michigan Omnibus State Safety Survey: Fall 1988

    F. M. Streff / A. C. Wagenaar / L. J. Molnar et al. | NTIS | 1989

    Factors Related to Nonuse of Seat Belts in Michigan

    A. C. Wagenaar / F. M. Streff / L. J. Molnar et al. | NTIS | 1987

    Direct Observation of Safety Belt and Motorcycle Helmet Use in Michigan: Fall 1993

    F. M. Streff / D. W. Eby / L. J. Molnar et al. | NTIS | 1993