Smoking (2) Health (2) étable (1) tabagisme (1) recherche (1) persistance (1) information (1) santé (1) évaluation (1) éducation (1) distribution (1) classification (1) Education (1) Economic conditions (1) Control (1) Assaying (1) Fiction (1) Nineteen seventies (1) Nineteen forties (1) Beneficiaries (1) Opportunity costs (1) Birth (1) Women (1) Waste gases (1) Twenty-first century (1) Tobacco use (1) Statistics (1) Research (1) Proportion (1) Persistence (1)