Attitudes of teenagers and their parents to Pennsylvania's graduated driver licensing system
Booster seat use in an inner-city day care center population
Do older drivers pose a risk to other road users?
Driving behavior under the influence of cannabis or cocaine
Fatalities of children 0-7 years old in the second row
Injury severity, vehicle safety features, and intersection crashes
Parent attitudes toward integrating parent involvement into teenage driver education courses
Work schedules of long-distance truck drivers before and after 2004 hours-of-service rule change