Effective drug prevention programs became an urgent need , but , still , there is no panacea for this problem . According to the report of the Drug Policy Research Center : ``The purpose of school-based drug prevention programs is to prevent , or at least diminish , children 's use of a variety of substances , including licit substances such as alcohol and tobacco as well as illicit ones such as cocaine and marijuana (Drug Policy Research Center , 2002 . If illegal drugs are legalized , it will conflict...











SUBJECTS

