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学科
- Smoking[remove]419
- Prevention33
- Smoking -- Prevention33
- Teenagers -- Tobacco use23
- Tobacco use20
- Teenagers17
- Tobacco17
- Habit breaking15
- Tobacco -- Physiological effect14
- Government policy12
- Healthful living11
- Physiological effect11
- Temperance11
- Drinking of alcoholic beverages10
- Just between us9
- Tobacco Industry9
- Advertising8
- Editorial8
- Law and legislation8
- Tobacco habit8