Surveys of drug use form an important basis for the development of effective drug policies, and also for measuring the effectiveness of existing policies. For the first time in history, scientists have now made direct comparisons of illicit drug use in 19 European cities by a cooperative analysis of raw sewage samples. To date, questionnaire-based studies have been the most common measurement method. Such studies are performed amongst different segments of society including partygoers, drug addicts and the general population...
via Health News from Medical News Today Read More Here..
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