title: Hitting the open road: the debate over requiring motorcyclists to wear helmets revs up once again.
authors: Doug
authors: D
authors: Shinkle
mesh_terms: D000063:Accidents, Traffic / Q000639:trends; D033161:Government Regulation; D006260:Head Protective Devices / Q000191:economics / Q000706:statistics & numerical data*; D006801:Humans; D009049:Motorcycles / Q000331:legislation & jurisprudence*; D013219:State Government; D014481:United States