Smoking and drinking habits of students at the University of Hong Kong: a longitudinal study.
D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking; D002681:China / Q000208:ethnology; D005260:Female; D006723:Hong Kong; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D012907:Smoking / Q000453:epidemiology*; D013334:Students; D014495:Universities