Keyphrases
Drug Use
100%
Tobacco Use
100%
Cluster Randomized Trial
100%
School-based Prevention Programs
100%
Alcohol Use
100%
Italy
50%
Cannabis
50%
High Prevalence
50%
Spain
50%
Intervention Group
50%
Behavior Change
50%
Germany
50%
Cigarette
50%
Baseline Characteristics
50%
Social Influence Model
50%
Substance Use
50%
Social Status
50%
Austria
50%
Belgium
50%
Sweden
50%
School-based Program
50%
Older Students
50%
Anonymous Survey
50%
Multi-center Randomized Study
50%
Evidence of Effectiveness
50%
Active Intervention
50%
Attitudinal Change
50%
Substance Abuse
50%
Community-randomized Trials
50%
Program Targeting
50%
School Program
50%
Basic Curriculum
50%
Greece
50%
Design Characteristics
50%
Peer Involvement
50%
Junior High School
50%
Catchment Area
50%
Geographical Variation
50%
Parental Involvement
50%
Social Sciences
Randomized Controlled Trial
100%
Drug Use
100%
Italy
50%
Secondary Schools
50%
Narcotic Drugs
50%
Social Influence
50%
Belgium
50%
Sweden
50%
Spain
50%
Greece
50%
School Program
50%
Drainage Basins
50%
Austria
50%
Legal Procedure
50%
Germany
50%
Agricultural and Biological Sciences
Cigarettes
100%
Cannabis
100%
Geographical Variation
100%
Mathematics
Control Group
100%
Randomized Study
50%
Social Status
50%
Secondary Schools
50%