Helmets and preventing motorcycle- and bicycle-related injuries. Council on Scientific Affairs, American Medical Association.
D000063:Accidents, Traffic / Q000401:mortality / Q000706:statistics & numerical data*; D000574:American Medical Association; D001642:Bicycling / Q000331:legislation & jurisprudence*; D006260:Head Protective Devices / Q000592:standards / Q000706:statistics & numerical data*; D006801:Humans; D009049:Motorcycles / Q000331:legislation & jurisprudence*; D013219:State Government; D015599:Trauma Severity Indices; D014481:United States