The effect of motorcycle helmet usage on head injuries, and the effect of usage laws on helmet wearing rates.

Mode of access: Internet.

Impact of motorcycle helmet usage in Colorado: a three year study. Executive summary. Final report.

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

Impact of motorcycle helmet usage in Colorado: a three year study. Final report.

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

Impact of motorcycle helmet usage in Colorado: a three year study. Technical appendix. Final report.

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

Impact of the repeal of the Kansas mandatory motorcycle helmet law: 1975-1978. Final report.

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

Impact of motorcycle helmet usage in Colorado : final report /

September 1978.

Evaluation of state motorcycle helmet laws using the National Electronic Injury Surveillance System. Final report.

Mode of access: Internet.

I. Safety belt usage among drivers. II. Use of child restraint devices, passenger safety belts and position of passengers in cars. III. Motorcycle helmet usage. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Impact of motorcycle helmet law repeal in South Dakota, 1976-79: executive sumary. Final report.

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

Impact of motorcycle helmet law repeal in South Dakota, 1976-79. Final report.

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

A report to the Congress on the effect of motorcycle helmet use law repeal--a case for helmet use.

Mode of access: Internet.

Estimating the benefits from increased motorcycle helmet use.

Mode of access: Internet.

Safety belt usage among drivers : use of child restraint devices, passenger safety belts and position of passengers in cars : motorcycle helmet usage /

Final report; May 1980.

Motor vehicle occupant safety survey. Final report.

National Highway Traffic Safety Administration, Office of Program Development and Evaluation, Washington, D.C.

Motorcycle fatality experience based on Fatal Accident Reporting System data 1976-79. Final report.

Mode of access: Internet.