Death and serious injury in child motorcyclists.
D000063:Accidents, Traffic / Q000517:prevention & control; D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D009049:Motorcycles; D011998:Recreation; D012941:Social Responsibility; D014947:Wounds and Injuries / Q000209:etiology* / Q000401:mortality