temps (durée) (2) recherche (2) Time (2) Substance abuse (2) Research (2) Research (2) Use (2) Substance use (2) besoin (1) mortalité (1) perte (1) épidémiologie (1) maladie (1) ligne (1) abords (agglomération) (1) Epidemiology (1) Mortality (1) Control (1) Commentaries (1) Methods (1) Commentaries (1) Will (1) Thought and thinking (1) Stigmatization (1) Social problems (1) Respect (1) Mortality (1) Measurement (1) Evidence (1) Epidemiology (1)