Study among the pupils in the city of Shoumen
During the spring of 2007 and with the assistance of the National Focal Point on Drugs and Drug Addictions, a research team from the...
During the spring of 2007 and with the assistance of the National Focal Point on Drugs and Drug Addictions, a research team from the...
In the early 2008 and with the assistance of the National Focal Point on Drugs and Drug Addictions, a research team from the Preventive...