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current policy environment: Topics by Science.gov+policy+environment.htmlComparative policy analysis for alcohol and drugs: Current state of the field.. PubMed. Ritter, Alison; Livingston, Michael; Chalmers, Jenny; Berends, Lynda; Reuter, Peter. 2016-05-01. A central policy research question concerns the extent to which specific policies produce certain effects - and cross-national (or between state/province) comparisons appear to be an ideal way to answer such a ...

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