Boys and girls and healthy behaviour.
Martin
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D000293:Adolescent; D000294:Adolescent Behavior; D000428:Alcohol Drinking / Q000453:epidemiology; D002170:Canada; D005260:Female; D015438:Health Behavior; D006801:Humans; D008019:Life Style; D008297:Male; D012907:Smoking / Q000453:epidemiology