title: Highway fund threat is no easy ride for motorcycle helmet law opponents.
authors.forename: P
authors.initials: P
authors.lastname: Cotton
mesh_terms: D000063:Accidents, Traffic / Q000401:mortality; D006260:Head Protective Devices; D006801:Humans; D009049:Motorcycles / Q000331:legislation & jurisprudence*; D013219:State Government; D014481:United States