Youth violence in the United States.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D012737:Sex Factors; D012959:Socioeconomic Factors; D014481:United States; D014754:Violence / Q000191:economics / Q000706:statistics & numerical data / Q000639:trends