Youth 2000.
D000056:Accident Prevention; D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D011932:Reading; D012940:Social Problems; D013332:Student Dropouts; D019966:Substance-Related Disorders / Q000517:prevention & control; D014481:United States