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Taiwan
Latin America
Substance-Related Disorders
Marijuana Abuse
Schizophrenia
Adolescent Behavior
Questionnaires
Smoking
Alcohol Drinking
Prevalence
Socioeconomic Factors
Age of Onset
Cross-Sectional Studies
Risk Factors
Urban Population
Incidence
Health Surveys
Street Drugs
Areca
Psychotropic Drugs
Co-Publications
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