jeunesse (2) Drug use (2) Youth (2) High school students (2) Drug utilization (2) Drug abuse (2) Youth (2) temps (durée) (1) risque (1) inventaire (environnement) (1) intérêts (1) famille (1) Russie (1) Development (1) Prevention (1) Alcohol use (1) States (1) Teenagers (1) Weights and measures (1) Time (1) Risk (1) Quakers (1) Modeling (1) Interest (1) Growth (1) Families (1) Drugs (1) Driving of horse-drawn vehicles (1) Drinking of alcoholic beverages (1) Dimensions (1)