ABSTRACT
Increasesinalcoholconsumptionandotherdrug-relatedproblemshavebeena strikingfeatureofthesituationinallregionsoftheworldduringthelasttwenty years.Concernaboutthesetrendshasgivenrisetoasearchfornewandmore effectivewaystopreventtheadversehealthandsocialconsequencesofdrinking anddrugabuse.