Drug, alcohol use down among Minnesota students.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control; D000293:Adolescent; D000437:Alcoholism / Q000453:epidemiology*; D002648:Child; D017280:Condoms / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D008297:Male; D008910:Minnesota / Q000453:epidemiology; D019966:Substance-Related Disorders / Q000453:epidemiology*