Waardering en effectiviteit van het drugspreventieproject van de Amsterdamse...

Survey to measure the effects of a drugs prevention program for pupils in final forms of primary schools. Attitude and knowledge about use of drugs / attitude of people around...本调查旨在评估面向小学高年级学生的毒品预防项目的实施效果，调查内容涵盖对毒品使用的态度与认知，以及周边人群的用药态度……