Motorcycle accident fatalities.
D000063:Accidents, Traffic / Q000517:prevention & control; D000328:Adult; D006259:Craniocerebral Trauma / Q000517:prevention & control; D005260:Female; D006260:Head Protective Devices; D006801:Humans; D008297:Male; D014481:United States; D014947:Wounds and Injuries / Q000401:mortality*