Drinking and problems from drinking after a reduction in the minimum drinking age.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000428:Alcohol Drinking; D001290:Attitude; D005260:Female; D006801:Humans; D007880:Legislation, Drug; D008297:Male; D009864:Ontario; D012920:Social Behavior Disorders / Q000453:epidemiology; D012931:Social Environment; D019966:Substance-Related Disorders / Q000453:epidemiology