Bicycle Helmets
Pediatrics 95:609-610, Boyle,W.E.,et al, 1995
Effectiveness of Bicycle Helmets in Preventing Head Injury in Children:Case-Control Study
BMJ 308:173-176, Thomas,S.,et al, 1994
The Effect of the 1992 California Motorcycle Helmet Use Law on Motorcycle Crash Fatalities and Injuries
JAMA 272:1506-1511, 1535, 1541994., Kraus,J.F.,et al, 1994