The rough road to air bags.
D000063:Accidents, Traffic; D001336:Automobiles / Q000266:history*; D004738:Engineering / Q000266:history; D049673:History, 20th Century; D006801:Humans; D007221:Industry / Q000266:history; D012449:Safety; D014481:United States; D014947:Wounds and Injuries / Q000266:history*