Drupal-Bibcite31<style face="normal" font="default" size="100%">Incidence of psychoses among drug dependent patients in primary care with no psychiatric history: a retrospective observational matched-cohort study</style><style face="normal" font="default" size="100%">Incidence of psychoses among drug dependent patients in primary care with no psychiatric history: a retrospective observational matched-cohort study</style>